TW201246647A - Light emitting element and method for making same - Google Patents

Abstract

This invention provides a light emitting element which exhibits excellent brightness. The light emitting element has an anode, a light emitting layer, an electron implanting layer and a cathode, wherein the electron implanting layer contains an organic compound having an anionic ionic group, and the cathode contains a conductive material having an aspect ratio of less than 1.5.

Description

201246647 • VI. Description of the Invention: [Technical Field of the Invention] The present invention relates to a light-emitting element and a method of manufacturing the same. [Prior Art] In the light-emitting element such as an organic EL element, it is important to increase the electron injectability on the cathode side in order to increase the luminance. In order to improve the electron injecting property on the cathode side, there has been reported a light-emitting element which has an electron injecting layer formed by a coating method using a material containing a cationic compound (Non-Patent Document 1). Advanced Technical Literature Non-Patent Literature 1 ·· J〇urnal of the American Chemical

Society 2007, 129, 10976. SUMMARY OF THE INVENTION Problems to be Solved by the Invention However, the luminance of the above-described light-emitting element is still insufficient. Accordingly, it is an object of the present invention to provide a light-emitting element having excellent brightness. Means for Solving the Problems The inventors of the present invention have diligently studied and completed the present invention. The following [1] to [15] can be provided by the present invention. [1] A light-emitting element having an anode, a light-emitting layer, an electron injection layer, and a cathode, the electron injection layer comprising an organic compound having an anionic ionic group, the cathode having conductivity having an aspect ratio of less than 1.5 material. [2] The light-emitting element according to [1], wherein the cathode contains an ionic compound. [3] The light-emitting element according to [2], wherein the ionic compound has a structure represented by the following formula (hh-Ι);

Mm'X, n'-b(hh-l) (In the formula (hh-1), Mm'+ represents a metal cation; X'n'_ represents an anion; a and b are each an integer of 1 or more independently; When there are a plurality of Mm'+ and X'n'·, Mm'+ and X'n'_ may be the same or different). [4] The light-emitting element according to [3], wherein the metal cation is an alkali metal cation or a soil metal cation. [5] The light-emitting element according to any one of [1] to [4] wherein the organic compound has a polystyrene-equivalent number average molecular weight of 3x10 or more. [6] The light-emitting element according to any one of [1] to [5] wherein the organic compound is a common compound. [7] The light-emitting element according to [6], wherein the conjugated compound is a compound compound represented by the following formula (XI);

(In the formula (XI), Ar2 is an (n2+2)-valent aromatic group, R2 is a single bond or a (m2+l) valence group, and X2 is a group selected from the formula: a SM, and a formula: C (=0) The base shown by SM, the formula: a base represented by CS2M, the formula: a base represented by an OM, a formula: a base represented by C02M, and a formula: a base represented by a B(OM) 2 Formula: a base represented by a br3m, a formula: a base represented by a b(or) 3m, a formula: a so3m 324121 4 201246647 A base, a formula: -s〇2M, a formula: a 〇 a group represented by p(=〇)(〇M)2 and a group of at least one group consisting of a group represented by the formula .P(-〇)(〇M)2: the above-mentioned formula, ^钱 atom Or a hydrocarbon group which may have a substituent; M represents a metal cation or a money cation which may have a substituent; m2 and η2 are each an integer of 1 or more independently). [8] The light-emitting element according to any one of [1], wherein the X2 is a light-emitting element of any one of (1) to [8], wherein the organic compound has a selected from the group consisting of fluorenyl groups. a group consisting of a group, a thiol group, an amine group, a hydrocarbon group, a murine group, a fluorenyl group, a heterocyclic group of the group, and a group represented by the following formulas (1) to (ι) At least one polar group; —〇—(R,0)m —R,,(I) 卞~ W (11) — S—(R,S)qR,,(ΙΠ)—C(=〇) - (R' - c(=〇))qR,'(ιν) -C(=S) - (R' - C(=S))qR,,(V) -N{(R,)qR"}2 (VI) —C(=0)0 — (R′ - C(=〇)〇)q _R,,(VII)—C(=0)- O- (R′〇)q—r,, (VIII —NHC(=0) —(R′NHC(=〇))q—R,,(ΐχ) (In the formulae (I) to (IX), R represents a hydrocarbon group which may have a substituent; r, , represents a hydrogen atom, a hydrocarbon group which may have a substituent, a carboxyl group, a sulfo group, a hydroxyl group, a thiol group, an amine group, a group represented by NRc2, a cyano group or a _c(=〇) NRC2 324121 201246647 ; R''' represents a trivalent hydrocarbon group which may have a substituent; m represents an integer of 1 or more; q represents an integer of 〇 or more And Rc represents an alkyl group having 1 to 30 carbon atoms which may have a substituent or an aromatic group having 6 to 50 carbon atoms which may have a substituent; when there are a plurality of the R, respectively, the R, And when R''', the R', the R", and the R'' may be the same or different). [1] The light-emitting element according to any one of [1] to [9] comprising a hole injection layer disposed between the light-emitting layer and the anode. [11] The light-emitting element according to any one of [1] to [, wherein the conductive material has an average number of phenomenological diameters of 1 〇〇〇 mn or less. [12] The light-emitting element according to any one of [1] to [11] wherein the conductive material contains one or more materials selected from the group consisting of metals, metal oxides, and carbon materials. [13] The light-emitting element of [12], wherein the conductive material is silver. [14] A method of producing a light-emitting device, comprising: producing a light-emitting element having an anode, a light-emitting layer, an electron injection layer, and a cathode; and comprising: a step of applying the first liquid composition to form the electron injection layer, A liquid composition comprising an organic compound having an anionic ionic group; a step of forming a second liquid composition to form the cathode, the second liquid composition comprising a conductive having an aspect ratio of less than 1.5 Sexual material. [15] The method for producing a light-emitting device according to [14], wherein the second liquid composition further contains an ionic compound. Advantageous Effects of Invention According to the light-emitting element of the present invention, the luminance of the light-emitting element can be improved. 324121 6 5 201246647 - In a preferred embodiment of the light-emitting element of the present invention, the response speed of the light-emitting element up to the expected brightness can be increased, and the stability of the light-emitting element can be improved. According to the production method of the present invention, the step of forming the charge injection layer and the step of forming the cathode which is carried out are carried out by a simple coating method which can be carried out in an air atmosphere. Therefore, since the steps can be carried out continuously, it is possible to produce a light-emitting element having excellent brightness in a simple and highly productive manner. [Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, each drawing schematically shows the shape, size, and arrangement of the constituent elements only to the extent that the invention can be understood. The present invention is not limited to the following description, and various constituent elements can be appropriately changed without departing from the scope of the invention. In the respective drawings, the same components are denoted by the same reference numerals, and the description thereof will not be repeated. The elements of the present invention are not necessarily manufactured or used in the configuration of the drawings. In the following description, the side in the thickness direction of the substrate may be referred to as the upper side, and the other side in the thickness direction may be referred to as the lower side. <Configuration Example of Light-Emitting Element> An example of the configuration of the light-emitting element will be described with reference to Fig. 1 . The present invention relates to a light-emitting element having an anode, a light-emitting layer, an electron injection layer, and a cathode, wherein the electron injection layer contains an organic compound having an anionic ionic group, and the cathode contains a conductive material having an aspect ratio of less than 1.5. Fig. 1 is a cross-sectional view schematically showing an example of a configuration of a light-emitting element. 324121 7 201246647 As shown in Fig. 1, the light-emitting element 10 includes an anode 32 and a cathode 34 which are basically configured, and a laminated structure 60 which is held by the anode 32 and the cathode 34. The laminated structure 60 is configured such that a plurality of organic layers are laminated, and at least one of the plurality of organic layers is the light-emitting layer 50. Further, the buildup structure 60 has an electron injection layer 44 which is an organic layer of at least i of the plurality of organic layers. The electron injecting layer 44 is disposed between the cathode 34 and the light emitting layer 50. The laminated structure 60 may be composed of only a plurality of organic layers, and may further include an inorganic layer composed of an inorganic material, a layer of a mixed organic material and an inorganic material. In the present embodiment, the anode 32 is provided in one of the two main surfaces facing the thickness direction of the first substrate 22. The hole injection layer 42a is provided to be bonded to the anode 32. The hole transport layer 42b is provided to be joined to the hole injection layer 42a. The light-emitting layer 50 is disposed to be bonded to the hole transport layer 42b. The electron injection layer 44 is disposed to be bonded to the light emitting layer 50. The cathode 34 is disposed to be bonded to the electron injecting layer 44. The second substrate 24 is provided to be bonded to the cathode 34. A laminated structure 60 is laminated on the anode 32. The laminated structure 60 does not include the first substrate 22, the second substrate 24, the anode 32, and the cathode 34, and is composed of a plurality of organic layers sandwiched by the anode 32 and the cathode 34. This configuration is composed of a hole injection layer 42a. The hole transport layer 42b, the light-emitting layer 50, and the electron injection layer 44 are formed. In the light-emitting element 10, the cathode 34 contains a lead 324121 5 201246647 - an electrical material ' having an aspect ratio of less than 1.5 and the electron injecting layer 44 contains an anionic ionic group. The organic compound of the base is included. An electrode that provides a hole in the injection layer, the hole transport layer, and the light-emitting layer, and the cathode provides an electrode that supplies electrons to the electron injection layer, the electron transport layer, and the light-emitting layer. The term "light-emitting layer" means a layer having the following functions: when an electric field is applied, a function of receiving electrons from a layer adjacent to the anode or the anode side or receiving electrons from a layer adjacent to the cathode or cathode side is received by the force of the electric field. The function of charge movement, providing electrons and holes to recombine the place to make it shine. The 4 electron injection layer, which means a layer adjacent to the cathode and having the function of accepting electrons originating from the cathode, and optionally has any of the following functions: the function of polling electrons, the function of blocking the hole injected from the anode, The luminescent layer provides the function of electronics. The so-called electron transport layer means a layer mainly having a function of transporting; and, if necessary, having any of the following functions: accepting the function of electrons originating from the cathode, and blocking the functional light layer of the hole injected from the anode to provide electrons function. 1 jinyue/same; the main entry layer means the adjacent anode, and has the function of accepting the function of the hole originating from the pole, and then has the function of any of the following functions as needed, and provides the function of the illuminating layer The function of the hole, blocking the function of the electron injected from the cathode. The so-called hole transport layer means a layer mainly having the same month of transporting electricity, and further has any of the following functions as needed: the function of accepting the hole originating from the anode, the function of providing the hole to the light-emitting layer, and the barrier The function of electrons injected from the cathode. Sometimes the electron transfer layer and the hole transport layer are collectively referred to as a charge transport layer. When there are 324121 201246647, the electron injection layer and the hole injection layer are collectively referred to as a charge injection layer. Hereinafter, the components of the light-emitting element ίο will be described. —Substrate— The substrate 20 (the first substrate 22 and the second substrate 24) constituting the light-emitting element 10 may be provided to be bonded to one of the anode 32 and the cathode 24 as long as other layers such as an electron injection layer and a light-emitting layer are formed. It can be made of materials that do not cause chemical changes. Examples of the material include glass, polyethylene terephthalate, polyethylene, polypropylene, polycarbonate, and the like. - In the cathode-light-emitting element 10, the material of the cathode 34 is selected to be coated on the substrate 2 by a coating method using a coating liquid, and the material of the cathode 34 contains an aspect ratio of less than 1.5. Conductive material. Examples of the conductive material include a conductive material containing at least one selected from the group consisting of metals, metal oxides, and carbon materials. Examples of the conductive material include metals such as aluminum, gold, platinum, silver, and copper, and alloys thereof, indium oxide, oxidized words, tin oxide, and indium oxides (ITO) and zinc containing the composites. A carbon material such as an oxide (AZ0), an indium zinc oxide (IZ〇), a tin oxide, a metal oxide such as NESA, a B-carbon black, a ketjen black, or a carbon black. These conductive materials may be used alone or in combination of two or more. In order to achieve good stability, the metal is preferably a transition metal, more preferably a Group 11 metal of the periodic table, and most preferably silver. Silver is especially good for silver particles. The metal oxide is preferably ITO or IZO. The carbon material is preferably carbon black. 324121 10 201246647 广所, aspect ratio, meaning the longest diameter of a rod, a linear body, etc.: 2: long control: the shortest diameter) 2. When the aspect ratio is distributed, the average ratio is averaged. To calculate the average. The aspect ratio of the conductive material can be specified by the S-shaped mirror. In order to improve the dispersibility, the width and height are preferably 14 when the ratio is high. (4) When the dispersibility is lowered, the conductive material having a lower than 1.5% ratio is preferably a nanostructure. The term "make structure" means a metal having a diameter of a nano unit, a metal oxide or a carbon material, or a combination of two or more of these. Nanostructure = The most common diameter is usually 1 nm or more and less than 1 〇〇〇 fine. In order to improve the conductivity and dispersibility of the nanostructure, the shortest diameter of the nanostructure is preferably 800 nm or less, more preferably 5 Å or less, and still more preferably the following, particularly preferably 100 nm or less. Good is below 5 〇 nm. / In order to improve the dispersibility of the nanostructure, the longest diameter of the nanostructure is preferably 100 nm or less, more preferably 8 nm or less, still more preferably 5 〇 Onm or less, and particularly preferably 300 nm or less. More preferably, the optimum value of 1 〇〇 nm or less is 50 nni or less. The number average of the conductive material is preferably 10,000 nm or less, more preferably 800 nm or less, still more preferably 5 Å or less, particularly preferably 300 nm or less, and particularly preferably 10 Å or less. The best is below 5 〇 nm. The conductive material having an aspect ratio of less than 1.5 may be a commercially available conductive material, and may be a conductive material produced by a conventional method. The production of a conductive material having an aspect ratio of less than 1.5 can be carried out by a liquid phase method, a gas phase method, or the like, 324121 201246647. The manufacturing method of the nanostructure is disclosed in Material Matters 2010, vol. 5, No 2, Material Matters 2009, νο1·4, Nol. When a coating liquid containing a conductive material having an aspect ratio of less than 1.5 is coated to form a film, a spin coating method, a prayer method, a micro gravure coating method, or gravure coating may be employed. Method, 诶.θ .. χ Stretch* bar coating method, roll coating method, wire bar coating method, dipping coating method, spraying method, bundle κ god printing method, inkjet printing method, micro battalion ten 臈. 1_ method, nozzle (four) method, etc. to form a solvent for the coating liquid, preferably a material or a solvent which can be uniformly dispersed _^ a cathode material for the cathode to be burned, 1,2-two gas, and u, 2_ Three examples include aromatic hydrocarbon solvents such as gas-like, two-gas gasification hydrocarbon solvent, tetrahydrofuran, two-noise chlorinated benzene, ortho-diphenylbenzene, cyclohexane, a solvent, toluene, and xylylene. Octane, decane, simmering, etc. Fat II = ketone solvent such as calcined, pentane, hexane, heptane ketone, acetic acid, ridge, acetone, _B_, 1 = 1 ^^西参*&quot ;Τ* ΛΙ= et al. Ester solvent, ethylene glycol, ethylene glycol monobutyl* 1, ethyl acetate, monomethyl hydrazine, methoxy ethene, hexadiol, ethylene glycol monoethyl hydrazine, Diethyl ether, glycerol, 1,2-hexanediol, etc., such as ethoxydimethoxydecane, triethylene glycol ethanol, propanol, isopropanol, j-hexanol and its derivatives, decyl alcohol, sulfone solvent , Ν-methyl-2-methyl ketone, (four), 'volume, bismuth hydrazine and other sub-agents. These solvents can be used as a layer of yttrium-based guanamine, which is only ι±ι·| a 丨 and more than two kinds. 极. : 34 34 is a layer composed only of the i layer. The laminated structure of the composition. Cao, or a layered structure consisting of two layers of 324121 12 201246647 - when the cathode is composed of two or more layers, for example, a layer of two or more layers may be sequentially coated by a coating method, or a layered method may be used. The cathode 34 is produced by bonding two or more layers formed separately by a casting method or the like. The cathode 34 may contain an ionic compound in addition to a conductive material having an aspect ratio of less than 1.5. The ionic compound herein includes a cation and an anion. The ionic compound may also contain a hydrate water or a neutral ligand. The neutral ligand means a compound which does not change the oxidation number of the ionic compound when it is bonded to the ionic compound when it is a non-ionic compound having a lone pair of electrons which can be coordinately bonded. Examples of the compound which can be a neutral ligand include pyridine, 2,2'-bipyridine, morpholine, terpyridine, triphenylphosphine, carbon monoxide, and crown ether. Examples of the cation include metal cations, organic cations, and ammonium cations. Since the stability of the cation is excellent, the cation is preferably a metal cation. Examples of the metal cation include metal cations, soil metal cations, typical metal cations, and transition metal cations. The metal cation is preferably a metal cation or a soil metal cation. Examples of the alkali metal cation include Li+, Na+, K+, Rb+, Cs+, and Fr+. The alkali metal cation is preferably Li+, Na+, K+, Rb+, Cs+, more preferably Cs+. Examples of the alkaline earth metal cation include Mg2+, Ca2+, Sr2+, and Ba2+. Typical metal cations include, for example, Zn2+, Cd2+, Hg+, Hg2+, 324121 13 201246647

Al3+, Ga3+, In3+, Ge4+, Sn2+, Sii4+, Pb2+, Pb4+, Bi3+, T1+, Tl3+. Examples of the transition metal cation include Sc3+, Ti4+, V3+, V5+, Cr2+, Cr3+, Mn2+, Mn3+, Fe2+, Fe3+, Co2+, Co3+, Ni2+, Ni3+, Cu+, Cu2+, Y3+, Zr4+, Nb3+, Nb5+, Mo4+, Mo6+. , Ru4+, Rh3+, Pd+, Pd2+, Ag+, Sb3+, La3+, Ce3+, Ce4+, Eu3+, Ta5+, W6+, Re6+, Os2+, Os4+, Ir4+, Pt2+, Pt4+ ° organic cations may, for example, be imidazolium cations, pyridinium cations, etc. An ionic cation, an ammonium cation, or a scaly cation of a nitrogen-containing aromatic ring. Examples of the anion include F-, Cl_, Br·, Γ, OH·, CN_, Ν03·, Ν02-, CIO·, C102-, C103-, C104-, Cr042·, HS04-, SCN·, BF4-, PF6. · an anion represented by R3〇-, an anion represented by the formula: R4COO_, an anion represented by the formula: r5so3·, an anion represented by the formula: r6oco2·, an anion represented by the formula: R7S02_, and a formula: An anion represented by R8S-, an anion represented by the formula: B(R9)4-, C〇32·, S2-, S042·, S2032-, P043-, and 〇2_. The anion is preferably an anion, a Cl, a Br, a ruthenium, a ruthenium, a NO, a BF4-, a PF6_, an anion represented by the formula: R3CT, an anion represented by the formula: R4COCT, an anion represented by the formula: R5S03_, and an anion. : an anion represented by R6C03·, an anion represented by the formula R7S02-, C032-, S〇42· and P043-, more preferably F·, cr, Br-, Γ, OH_, N03-, BF4-, PF6- An anion represented by the formula R3CT, an anion represented by the formula: R4COO_, an anion represented by the formula: r5so3_, C032· and S042-, more preferably F, Cl·, Br-, Γ, OH-, Ν03·, BF4-, PF6_, an anion represented by the formula r4coct, an anion represented by the formula R5S03_, 324121 14 201246647 2- 2 C〇3 and S04 ', preferably F_, OH-, n〇3-, : R1CO〇-shown. Anion and C〇32-. In the above formula, r3, R1, R2, R3, R4, R5 and R9 are each independently and represent a hydrocarbon group which may have a substituent. Examples of the hydrocarbon group which may have a substituent represented by R3, R1, R2, R6, R7, R8 and R9 include a methyl group, an ethyl group, a propyl group, an isopropyl group, a butyl group, an isobutyl group, and a second group. a group having from 1 to 50 carbon atoms such as a tributyl group, a pentyl group, a hexyl group, a decyl group, a dodecyl group, a pentadecyl group, an octadecyl group or a behenyl group; a cyclic saturated hydrocarbon group having 3 to 50 carbon atoms such as cyclobutyl, cyclopentyl, cyclohexyl, cyclodecyl, cyclododecanyl, norbornyl, adamantyl; vinyl, propenyl, 3 - an alkenyl group having 2 to 50 carbon atoms such as a butenyl group, a 2-butenyl group, a 2,pentenyl group, a 2-hexenyl group, a 2-decenyl group, a 2-dedodecyl group; Naphthyl, 2-naphthyl, 2-tolyl, 3-decylphenyl, 4-tolyl, 4-ethylphenyl, 4-propylphenyl, 4-isopropylidene, 4-butylphenyl, 4- Third butyl phenyl, 4-hexyl phenyl, 4-cyclohexyl phenyl, 4 adamantyl phenyl, 324121 15 1 _ phenyl group, an aromatic group having 6 to 50 carbon atoms; phenyl fluorenyl group, 1-strand Phenylethyl, 2-phenylethyl, 丨_phenyl-丨-propyl, 丨-phenyl-2-propyl, 2-phenyl-2-propyl, 3-phenylpropyl, 4-phenyl - The arylalkyl group having 7 to 50 carbon atoms such as 1-butyl, 5-phenylpentylpentyl or 6-phenyl-1-hexyl, and the hydrocarbon group having a substituent preferably have a carbon number of 1 to 50. An alkyl group, an aromatic group having 6 to 2 carbon atoms, more preferably an alkyl group having 1 to 12 carbon atoms, a aryl group having 6 to 18 carbon atoms, and most preferably a group having 1 to 6 carbon atoms. An aromatic group having 4 to 12 carbon atoms. Examples of the substituent which the hydrocarbon group may have include an alkoxy 5 group, an aryloxy group, an amine group, a substituted amine group, a fluorenyl group, a substituted fluorenyl group, a tooth atom, a 201246647 imine residue, a decylamino group, a quinone imine group. , i-valent heterocyclic group, transbasic, reduced, cyano m hydrocarbyl group may have a mercapto group than an amine group, a monovalent heterocyclic group, a thiol group, a hydroxyl group, a few groups, more preferably, a (iv) group, sulfur County, reduction, county. When a plurality of soil substituents are present in a hydrocarbon based towel, the plurality of substituents present may be the same or different. The alkoxy group which the hydrocarbon group may have may be a straight bond or a cyclic ring. The alkoxy group has a carbon number of usually from i to 20, preferably from 1 to the alkoxy group which the hydrocarbyl group may have, for example, a methoxy group, an ethoxy group 10: an isopropoxy group, a butoxy group, an isobutoxy group , a second butoxy group, a third butoxy 2 pentyloxy group, a hexyloxy group, a cyclohexyloxy group, a heptyloxy group, an octyloxy group, an anthraceneoxy group, and a dodecyl group. The hydrocarbyl group of the hydrocarbyl group may be substituted with a fluorine atom. Examples of the domain atomic group include trimethoxy, pentafluoroethoxy, perfluorooxy, perfluorohexyloxy, peroxyoctyloxy, methoxymethyloxy, and 2_. Methoxyethyloxy. The aryloxy group which the hydrocarbon group may have has a carbon number of usually 6 to 6 Å', preferably 6 to 48. The aryloxy group which the hydrocarbon group may have may, for example, be phenoxy-q to c12: oxyphenoxy (where c represents a carbon atom. The attached number indicates the number of anatomical atoms. "Mh" is a county* carbon atom. The number is from 1 to 12. The same applies hereinafter, 〇1 to Ci2 alkyl phenoxy, gongcaioxy, 2-caioxy, and penta-II phenoxy. "Cl to C! 2 alkoxyoxyloxy group can be exemplified by, for example, methoxyphenoxy, ethoxybenzene=propyl, propoxyphenoxy, isopropoxyoxy, oxyphenoxy, isobutoxy Oxygen, second butoxyphenoxy, third butoxyoxy, pentyloxyoxy, hexyloxyoxy, cyclohexyloxyphenoxy, heptoxyphenoxy, octyloxyphenoxy, 324121 5 16 201246647 tEthylphenoxy, nonylphenoxy, nonylphenoxy, 3,7-dimethyl. Octyloxyphenoxy, and dodecyloxyoxyl. , C12 silk to Keke County, such as 曱基钱 &, ethyl phenoxy, dimethyl phenoxy, propyl phenoxy, u, 5 tri-f-phenoxy, methyl ethyl phenoxy, different Propylphenoxy, butylphenoxy, isobutylphenoxy, first butylphenoxy, tert-butylphenoxy, pentylphenoxy, isopentylphenoxy, hexylbenzene Oxyl, heptylphenoxy, octylphenoxy, decyloxy, nonylphenoxy, and dodecylphenoxy. The substituted amine group which may have a substituent of the hydrazine group may, for example, be a group of one or more hydrogen atoms in the amine group selected from the group consisting of an alkyl group, an aryl group, an aralkyl group and an i-valent heterocyclic group. One or more kinds of substituted amino groups. The number of slave atoms replacing the fee base is from 1 to 60, preferably from 2 to 48. The hydrocarbyl group may have a substituted amino group, and examples thereof include a methylamino group, a dimethylamino group, an ethylamine group, a difefeyl group, a propylamine group, a dipropylamine group, an isopropylamine group, a diisopropylamino group, a butylamine group, and a different one. Butyryl, second butylamino, tert-butylamino, pentylamino, hexylamino, cyclohexylamino, heptylamino, octylamino, 2-ethylhexylamino, decylamino, hydrazine Amine, 3,7-dimethyloctylamino, dodecylamino, cyclopentylamino, dicyclopentylamino, cyclohexylamino, dicyclohexylamino, η than slightly bite, bite , bis-trifluoroguanamine, anilino, diphenylamine, (^ to C12 alkoxyanilide, bis((^ to Cn alkoxyphenyl)amine, bis (<^ to (:12) Alkyl phenyl)amino, 1-naphthylamino, 2-naphthylamino, pentafluoroanilino, acetoamine, thalidinoyl, pyrimidinyl, pyridinium, tridecylamine, phenyl -Ci to C12 alkylamino group, C! to Cn alkoxyphenyl-C to C12 alkylamino group, to C12 alkylphenyl-C! to C! 2 alkylamino group, two (C) to (: 12 alkoxyphenyl-Ci to c12 alkyl) 324121 17 201246647 -cf to cl 12 alkyl phenyl group Μ [: ritual) amine group, i-naphthyl cigarette c And a naphthyl group to a Ci2 alkyl group. The substituted second group of the hydrogen atom C group may, for example, be one or more of the fluorene atoms selected from the group consisting of a pyridyl group and an aromatic heterocyclic group. In the group i(4), the 4-base and the monovalent-imine residue which may have a substituent, means an imine having a structure represented by the formula: 姑 姑 姑 & 或 或 或 式 式 式 式The residue after one hydrogen atom in the compound =======================================================================

The number of carbon atoms in the group is usually U2G, preferably 2 to 18 ports. Examples of the imine residue having a substituent include, for example, a formula: -CR, N-RT 2 wherein N-C(R"2 is a group. In the formula, it represents an alkyl group, an aromatic group, an aryl group, An aralkenyl group, or an aryl block group, each of which is independent of each other, represents a silk, a fragrant, and a fragrant I: the presence of a 2 alkynyl group. Among them, when a hydrazine is present, it also has a bond, and is formed. a ring of a divalent group, wherein the bond ethyl group, a propyl group, a butyl group, a pentyl group, a hexyl group, etc., a carbon 2 = a group of a group of 1 may have an imine group. Base ^ to 324121 18 201246647

In the formula, Me represents a sulfhydryl group, and the same applies hereinafter. The mercapto group having a substituent which the hydrocarbon group may have has usually from 1 to 20, preferably from 2 to 18. The hydrocarbyl group may have a mercaptoamine group, an anthranyl group, an acetamino group, a propylamine group, a butylammonium group, a benzammonium group, a trifluoroacetamido group, a pentafluorobenzamide group, Dimethylamino, diethylamine, dipropylamine, dibutylammonium, benzoylamino, di-trifluoroacetamido, bis-pentafluorophenylamine, etc. . The sulfonium imino group which the hydrocarbon group may have, which is a residue obtained by removing a hydrogen atom bonded to a nitrogen atom thereof from the quinone imine. The quinone imine group usually has 4 to 20 carbon atoms, preferably 4 to 18 carbon atoms. Examples of the quinone imine group include the following groups. 324121 19 201246647

The hydrocarbon group may have a heterocyclic ring of a substituent, and the heterocyclic compound having a substituent may be removed. Examples of the heterocyclic ring of the heterocyclic compound are the atoms remaining after the 1,3-till ring, 1,4-dioxane ring, u, 5: well ring, thiazide, pyrazole ring, imidazole ring, a monocyclic heterocyclic ring such as an oxazole ring, a thiazole ring, an oxo-coating, a fluorene ring, or a ring; a condensed polycyclic heterocyclic ring selected from the condensation of two or more rings; And having a structure in which two heterocyclic rings or a heterocyclic ring #1(tetra) scented ring is crosslinked by a divalent group such as an ethyl group or a tetra group. The heterocyclic ring is preferably an anthracene, an i,2-dimorphine ring, a W•dimorphine ring, a diterpene ring, and a triazine ring. Preferably, it is a pyridine ring or a 1,3,5-triantane ring. The ionic compound preferably has a structure represented by the following formula (hh_1): Mm'X'n'-b (hh-1) 324121 20 201246647 In the formula (hh-1), Mm'+ represents a metal cation. 'n'_ denotes an anion. * a and b are each an integer of 1 or more. When Mm'+ and '^ are plural, they may be the same or different. The formula (hh-Ι) The ionic compound may also contain water of hydration, and a neutral ligand has been described. In the formula (hh-Ι), a and b are each independently, preferably an integer of 1 to 3, more preferably 1 or 2. , a and b are combinations in which the ionic compound represented by the formula (hh-Ι) has no charge deviation in the whole. In the formula (hh-Ι), m' represents an integer of 1 or more. The metal cation represented by Mm'+ The definition, specific examples, and preferred examples are as described above. In the formula (hh-Ι), η' represents an integer of 1 or more. The definition, specific examples, and preferred examples of the anion represented by X'n'_ are as described above. When the ionic compound contains water of hydration, the ionic compound preferably has a structure represented by the following formula (hh-2).

Mm'+aX'n'-b . n'' (H20) (hh-2) In the formula (hh-2), η'' represents an integer of 1 or more. The definitions, specific examples, and preferred examples of Mm'+, X'n'-, a, b are as described above. Examples of the ionic compound include gasification chain, sodium fluoride, potassium fluoride, Dunhua planer, fluoride mother, gallium fluoride, hydrogen peroxide, sodium niobium oxide, potassium hydroxide, water hydroxide planer, calcium hydroxide, and carbonic acid. Lithium hydrogen phosphate, potassium hydrogencarbonate, cesium hydrogencarbonate, cesium hydrogencarbonate, lithium carbonate, sodium carbonate, potassium carbonate, carbonic acid planing, strontium carbonate, magnesium carbonate, calcium carbonate, copper carbonate, iron carbonate, silver carbonate, ammonium carbonate, acetic acid , sodium acetate, acetic acid clock, acetic acid, barium acetate, barium acetate, calcium acetate, silver acetate, copper acetate, ammonium acetate, lithium sulfate, sodium sulfate, sulfuric acid 324121 21 201246647 potassium, barium sulfate, calcium sulfate, magnesium sulfate, sulfuric acid Aluminum, zinc sulfate, ammonium sulfate, silver sulfate, copper sulfate, iron sulfate, sulfuric acid, sulfite, sodium thiosulfate, nitric acid, nitric acid, sodium nitrate, nitric acid, nitric acid, nitric acid, silver nitrate, nitric acid Iron, copper nitrate, cobalt nitrate, lead nitrate, nitrous acid clock, lithium phosphate, tripotassium phosphate, trisodium phosphate, aluminum phosphate, sodium hydrogen phosphate, monohydrogen phosphate, perchloric acid unloading, excessive acid clock, complex acid Shu, cyanide | acid unloading Sulphur thiocyanate, sodium tetrafluoro sulphate, sodium hexafluorophosphate, hexafluoro sulphate, stearic acid clock, sodium stearate, stearic acid, stearic acid dance, meat and vegetables, meat Beans and vegetables acid, sodium citrate, nano 6-aminohexanoate, thiophene sodium, 4-aminocyclohexanone, sodium linoleate, sodium oleate, benzoquinone Acid clock, sodium benzoate, benzoic acid planer, sodium bismuth dicarboxylate, butyl chloride _3_methylimidazole rust, 1-butylpyridine rust hexafluorophosphate, gasified tetrabutylammonium, gasified triterpene Butylammonium, gasified 1-hexylmethylpyridine rust, trihexyl (tetradecyl) scale fluorophosphate, etc.; in the sputum, it is better to say that the clock, emulsified sodium, smashed K planer, calcium fluoride, Gallium fluoride, lithium hydroxide, sodium hydroxide, potassium hydroxide barium hydroxide, benzoic acid clock, sodium benzoate, benzoic acid hammer, pair of stupid ^ m匕 1-butyl armor practice, 1 · D Base error six _ = tetrabutyl chloride, gasification of trimethyl butyl, chlorinated ^ hexyl + methyl _, dihexyl (fourteen silk) hexafluoride salt; more = gas? Unloading side, gasification, marrying, gas oxidation: sodium hydroxide, potassium ferrite, hydrogen-oxygen leg, benzalkonium; formic acid, p-phenylene - and more preferably gasification of aerobic oxygen: optimal for nitrogen oxidation chain. These ionic compounds = hydrated water, neutral ligand. JJ 3 324121 22 201246647 The compound represented by the above formula (hh-2) may, for example, be barium hydroxide monohydrate, chloride hexahydrate, copper sulfate monohydrate, copper sulfate trihydrate or copper sulfate pentahydrate. , sodium sulfate 10 hydrate, sodium carbonate 10 hydrate, sodium carbonate monohydrate, sulfuric acid sulphate 16 hydrate, gasification recorded 6 hydrate, vaporized tin 2 hydrate, cobalt iodide 6 hydrate, ruthenium chloride 3 Hydrate; among them, hydrated hydrate 1 is preferred. The ionic compound may be used alone or in combination of two or more. The ionic compound preferably has a molecular weight of less than 1 Torr, more preferably less than 8 Å, still more preferably less than 500, most preferably less than 300. In the cathode 34 of the light-emitting element of the present invention, the amount of the ionic compound added is usually from 0.01 part by weight to 1 Torr to 1 Torr with respect to the material of the cathode (conductive material having a width ratio of less than 1.5). The parts by weight are more preferably 0.1 to 30 parts by weight. The parts by weight are preferably from 0.1 part by weight to 50 parts by weight, most preferably under the conditions of other materials: = imperfection: 吏 = electrical property, and may be mixed before: r, preferably _nm or more. The cathode ' is preferably 2 or more thin, preferably the following, more preferably! "The degree of dryness is usually the following, 'The cathode formed by the coating method. 3: The lower part is preferably less than 50 〇 nm. The cathode 3**smoothing is preferably a cathode: the height difference of the portion is usually (four) convex mid-high portion and low #324121 is preferably 100 nm or less, and j 23 201246647 is preferably 20 nm or less, preferably 1 nm or less. Examples of the method for reducing the unevenness of the surface of the cathode include the following method: a method of applying a pressure to a surface of a film formed by coating a film formed by coating with a bright point of a conductive material or the like, A method of transferring a film of a coating liquid applied on a substrate to be applied to a predetermined substrate, and a method of filling a recess of the film formed by coating with another material. - Anode - In the light-emitting element 10, the anode 32 is formed of an anode material and can be formed on a substrate. It is also possible to prepare a substrate in which an electric property (4) formed using a conductive material is provided in advance, and a predetermined pattern is formed by patterning the conductive thin film to form an anode. Examples of the anode material constituting the anode 32 include conductive metal oxides, metals, carbon materials, and conductive polymer materials. Examples of the anode material constituting the anode 32 include indium oxide, zinc oxide, tin oxide, and metal oxides such as ITO, AZQ, IZO, and NESA, and metals such as gold, silver, and copper, and carbon nanotubes. , carbon materials such as graphite, polyaniline, poly, pheno (for example, poly(3,4-ethylenedioxan) polystyrene acid), conductive ring molecules such as polyfluorene, and polymers containing the same Conductive polymer material. The anode may have a single layer structure composed of only one layer, or two or more layers. The thickness of the anode 32 can be adjusted to be more than 10 nm or more, preferably 2 〇 nm or more, and more preferably 1 〇〇 or more, as long as the conductivity and the durability are adjusted. The thickness of the anode 32 is usually ΙΟμηη or less, preferably □ or less, more preferably 500 nm or less. The method of forming the 324l2i 201246647 2 may be a vacuum evaporation method, a method of the anode 32 and the electron injection layer 44, and a coating method is preferred. For the coating layer formed by the material, or the metal oxide can be composed of the conductive polymer material, f, metal fluoride or organic insulation in the coating method of the anode 32. Although the coating liquid is applied to the cloth method, the dissolution of the cathode is: the example of the same-capacity sword is mixed with the material which has been described, and the electrical property can also be mixed with it after formation. , Erguang: anode material and other materials - into: layer, ::: Other materials that can also be mixed with the anode material, preferably layer 4, the composition of the anode material mixed with the hole injection material = layer ' It has the function of both the hole injection layer and the anode. Those. The surface of the anode formed is smooth, and it is preferable that the unevenness of the surface is small (4). The difference between the height of the surface unevenness and the low portion is as follows: Preferably, the following is preferably 1 GGnm or less, and more preferably 10 nm or less. The example of the method of reducing the surface unevenness of the anode is the same as the method of the surface unevenness. The cathode anionic ionic group has an electron injection layer. The electron injection layer 44 contains a compound having 324121 25 201246647. The average number of ionic ionic machine conversions is anionic, and the number of slabs is 7, and the size of the spoon is 3X103 or more, preferably 3><1〇3 to i or more 'more preferably 3χ1() 3 to 1χ1()6 or more. The polystyrene conversion number (GPC=Tf and the weight average molecular weight may be a gel permeation color layer analysis compound === base organic compound is preferably a common compound, the so-called compound compound means a compound having a total (four), because Since the electron transport property is improved, it is preferably a compound having a structure in which a complex bond, a nitrogen atom, an oxygen atom, a sulfur atom, or an unshared electron pair of a dish atom has an empty P-orbital atom. The d-representation with the continuation is connected by a single key. If this point is considered, the value calculated by the following formula is preferably 5 G% or more, more preferably 6 G% or more, and further preferably 70% or more, more preferably 80% or more, and most preferably 9% or more. Formula: {(complex bond, nitrogen atom, oxygen atom, sulfur atom, phosphorus atom, unshared electron pair, boron atom) The p-domain of the space, or the number of the parent or the chain contained in the area of the d-track domain of the sigma-bonded sigma-bonded by the single-key.) The number of total atoms on the skeleton or primary bond)}Χ1〇〇, the electron injection layer is composed of only one layer The layer structure may be a layered structure composed of two or more layers. The electron-injecting lining has an anionic ionic group of 324121 5 26 201246647 The compound may be used alone or in combination of two or more. When the organic compound having an anionic ionic group is a conjugated compound, the conjugated compound is preferably a conjugated compound represented by the following formula (XI).

In the formula (XI), Ar2 is an (n2+2)-valent aromatic group, R2 is a single bond or a (m2+l)-valent group, and X2 is a group selected from the formula: a SM, and a formula: a C (=0) The base shown by SM, the formula: a base represented by CS2M, the formula: a base represented by 0M, the formula: a base represented by C02M, a formula: a base represented by B(OM)2, Formula: a base represented by BR3M, a formula: a B (OR) 3M base, a formula: a base represented by S03M, a formula: a base represented by S02M, and an equation: an op (=o) (om) A group and a formula represented by 2: at least one of a group consisting of a group represented by p(=o)(om)2. R represents a hydrogen atom or a hydrocarbon group which may have a substituent. Μ represents a metal cation or an ammonium cation which may also have a substituent. M2 and η2 are each an integer of 1 or more. In the above formula (XI), the (?2+2)-valent aromatic group represented by Ar2 means an atomic group remaining after removing (?2+2) hydrogen atoms from the aromatic compound, and may have a substituent. Examples of the organic compound having an anionic ionic group include organic compounds represented by the following formulas (1) to (95). Since the synthesis is simple, 324121 27 201246647 is preferably the following formula (1) to Formula (12), Formula (15) to Formula (22), Formula (24) Straight (31), Formula (37) to Formula (40), Formula (43) to Formula (46), Formula (49), An organic compound represented by the formula (50), the formula (59) to the formula (76), and the formula (92) to the formula (95); more preferably, the formula (1) to the formula (3), the formula (8), and the formula (8) 10), an organic compound represented by the formula (15), the formula (17), the formula (21), the formula (24), the formula (3〇), the formula (59) to the formula (61); and more preferably a formula ( 1) to an organic compound represented by formula (3), formula (8), formula (10), and formula (59); preferably, formula (1), formula (2), formula (8), formula (59) Shown as an organic compound. 324121 28 5 201246647 〇 co cco coco (1) (2) (3) ...

(13)

Q Q QQ (16) (17) (18) (19) OOOOOO op Qp (2〇) (21) (22) (23) (24) (25)

324121 29 201246647

324121 30 5 201246647 * (49) (50)

(53)

(55)

_ ^ (56) (57) ^ (58)

(59) (60) (61) 324121 31 201246647

Ο Ο (64) (65) (66)

(70) (71) 00 co> ^ (72) (73) (74) (75) (76) (77)

(78) Your sand shovel (79) (80) (81) (82) (83) COOOCQCCOOiO (4) 0 (84) (85) (86) (87) (88) (89) (90) (91)

One or more hydrogen atoms of the organic compound represented by the above formula (1) to formula (95) may be substituted with a substituent. The organic compound may have a substituent of 32 324121 201246647. Examples thereof may include a tooth atom, a thiol group, a thiol group, or a hydrocarbon sulfur county having a substituent. Hydrocarbons having a substituent = a group, a hydrazine having a substituent (10) fluorene, a silk, or a bis-diyl group, a silk, a sputum material, or a halogen atom in a hydrocarbon group The dihydrocarbylamino group, the phosphino group, the argon atom in the nicotinyl group which may be substituted by a substituent may also be substituted with a substituent, the hydrocarbyl phosphino group, the nitrogen atom in the hydrocarbyl group may also be substituted by a ruthenium group, a valence a heterocyclic group, a methylidene group, an alkoxy group which may have a substituent, a nicotinyl group which may have a substituent, a nitro group, a formula: a group represented by 0P (=0) (0H) 2 , the formula: Ρ Ρ (=0) (0 Η) 2, the aminomethyl hydrazino group, the hydrogen atom in the hydrocarbon group may also be substituted with a substituent, the hydrocarbon amine mercapto group, the hydrogen atom in the hydrocarbon group may also be substituted a substituted dihydrocarbylaminocarbyl group, a group represented by the formula: _ C(=S)NR2, a group represented by the formula: _B(OH)2, a group represented by the formula: -BR2, and a succinate residue Base, formula: — Si a group represented by (OR) 3, a sulfo group, a hydrocarbon sulfo group which may have a substituent, a flammable base group which may have a substituent, an anthracene group, and a substitutable group which may have a substituent, and a formula: -NRC(=0)0R base, formula: -nRC(=0)SR The base shown by: Formula: NRC(=S)0R, Equation: -NRC(=S)SR The base of the formula: a base represented by 0C (=0) NR2, a formula: - sc(=o)nr2, a base, a formula: an oc (= s) nr2, a formula: a SC (=S) The base represented by NR2, a formula: a base represented by nrc(=o)nr2, and a formula: a group represented by NRC(=S)NR2. Among these, R represents the same meaning as described above. A plurality of substituents present may also be bonded to each other to form a ring. Further, examples of the substituent which the above-mentioned organic compound may have include 324121 33 201246647 cyano group, pyrrolidinyl group, a group represented by the following formulas (1) to (IX), a formula: a group represented by a nr3m', and a formula: The group represented by PR3M', the formula: a group represented by or2m', the formula: a group represented by SR2M', the formula: an IRM, the group shown, and the following formula (η-1) to (n- 13) A group consisting of an atomic group remaining after removing one hydrogen atom from an aromatic ring in an aromatic compound. —〇-(RO)mR,,(I)—R′"-/0 (°R,)m (II) —S-(R'S)qR,' (III) —C(=0)- (R , _ C(=0))q — R,, (IV) —C(=S)-(R,-C(=S))qR,,(V) -N{(R,)qR,,} 2 (VI) -C(=0)0 — (R, a C(=0)0)q- R:,(VII) -C(=0) - O_ (R,0)q — R,, ( VIII) -NHC(=0)- (R,NHC(=0))q- R,, (IX)

RM' (n-5)

RM' RM' RM' (n-6) (n-7) (n-8) 0 0 0 0 RM' RM' RM' RM' (n-1) (n-2) (n-3) (n -4)

N, (n-12) (n-13)

In the above formula, R has the same meaning as described above. Multiple Existences 324121 34 201246647 Substituents may also be bonded to each other to form a ring. In the formulae (1) to (IX), R' represents a hydrocarbon group which may have a substituent. R" represents a hydrogen atom, a hydrocarbon group which may have a substituent, a carboxyl group, a sulfo group, a hydroxyl group, a thiol group, an amine group, a group represented by NRe2K, a cyano group or a group represented by a C(=0)NRe2. R''' represents a trivalent hydrocarbon group which may have a substituent; m represents an integer of 1 or more. q represents an integer of 0 or more. Rc represents an alkyl group having 1 to 30 carbon atoms which may have a substituent or may have The aromatic group having 6 to 50 carbon atoms in the substituent. When R', R'', and R''' are respectively present in plural, they may be the same or different.) The above organic compound may have a halogen atom of a substituent. The fluorine atom, the chlorine atom, the bromine atom, and the iodine atom may be mentioned, and among them, a fluorine atom, a gas atom, and a desert atom are preferable. Examples of the hydrocarbon group which the above-mentioned organic compound may have a substituent or R'' may be a mercapto group. Ethyl, propyl, isopropyl, butyl, isobutyl, t-butyl, tert-butyl, pentyl, hexyl, decyl, dodecyl, pentadecyl, octadecyl, a tetraalkyl group having 1 to 50 carbon atoms; a cyclopropyl group, a cyclobutyl group, a cyclopentyl group, a cyclohexyl group, a cyclodecyl group a cyclic saturated hydrocarbon group having 3 to 50 carbon atoms such as cyclododecyl, norbornyl, adamantyl; vinyl, propenyl, 3-butenyl, 2-butenyl, 2-pentene Alkenyl group having 2 to 50 carbon atoms such as 2-hexenyl, 2-decenyl and 2-dodecenyl; phenyl, 1-naphthyl, 2-naphthyl, 2-fluorenylphenyl, 3-indole, 4-methylphenyl, 4-ethylphenyl, 4-propylphenyl, 4-isopropylphenyl, 4-butylphenyl, 4-tert-butylphenyl, 4-hexylphenyl, An aromatic group having 6 to 50 carbon atoms such as 4-cyclohexylphenyl, 4-adamantanylphenyl or 4-biphenyl; phenyl fluorenyl, 1-phenyleneethyl, 2-phenylethyl, 1-324121 35 201246647 Phenyl-1-propyl, 1-phenyl-2-propyl, 2-phenyl-2-propyl, 3-phenyl-1-propyl, 4-phenyl-1-yl, a aryl group having 7 to 50 carbon atoms such as a 5-phenyl-1-pentyl group or a 6-phenylhexyl group. The hydrocarbon group is preferably an alkyl group having a carbon number of 丨 to 5 Å and an aromatic group having 6 to 50 carbon atoms. The group is more preferably an alkyl group having from 1 to 12 carbon atoms and an aromatic group having from 6 to 18 carbon atoms, most preferably an alkyl group having from 6 to 12 carbon atoms and an aromatic group having from 6 to 12 carbon atoms. Organic compounds can be substituted The hydrocarbon thio group means a thio group in which one hydrogen atom constituting the group is substituted by the above hydrocarbon group. The above-mentioned organic compound may have a hydrocarbon thiocarbonyl group as a substituent, and means a thiocarbonyl group in which the group is constituted. The hydrogen atom is substituted by the above hydrocarbon group. t The hydrocarbon disulfide group which the above-mentioned organic compound may have, means a disulfide group in which one hydrogen atom constituting the group is substituted by the above hydrocarbon group. The alkoxy group which the organic compound may have a substituent, means an oxy group in which one of the two bonds in the oxy group is bonded to the above hydrocarbon group. A 7 is a hydrocarbon carbonyl group which the above organic compound may have a substituent, Refers to a carbonyl group in which one hydrogen atom constituting the group is substituted with the above hydrocarbon group. The above-mentioned organic compound may have a hydrocarbon oxycarbonyl group as a substituent, and an oxycarbonyl group in which one hydrogen atom constituting the group is substituted by the above hydrocarbon group. P a pound of the above-mentioned organic compound may have a substituent of a hydrocarbon carbonyloxy group, an carbonyloxy group, wherein one hydrogen atom constituting the group is taken by the above hydrocarbon group 324121 36 5 201246647 (4) a substituent which the ί34 organic compound may have The hydrocarbon amine group, or two: two, think of an amine group, which constitutes the base! One or two hydrogenogens are substituted by two. The hydrocarbon phosphino group or the dihydrogen phosphino group means that one or two hydrogen atoms constituting the group are substituted with the above hydrocarbon groups. The hydrocarbon amine carbamate or the dihydrocarbylcarbamyl group of the organic compound may have an amine group, wherein one or two hydrogen atoms constituting the group are Hydrocarbyl substitution. The above organic compound may have a substituent of the formula: _BR2 and a formula: -Si(〇R)3, wherein R has the same meaning as described above. Examples of the boronic acid ester residue to which the above organic compound may have a substituent may be exemplified by a group selected from the following formula. 〇ch3 —-B OCH3 〇c2h5 I \ OC2H5

ο ο 7 The hydrocarbon sulfo group which the above-mentioned organic compound may have, means a sulfo group in which one hydrogen atom constituting the group is substituted by the above hydrocarbon group. The hydrocarbon sulfonyl group which the above-mentioned organic compound may have a substituent means a sulfonyl group in which one of the two bonds of the group is bonded to the above hydrocarbon group. The above-mentioned organic compound may have a substituent of a hydrocarbon, and a tone refers to a sub-continuation group in which one hydrogen atom constituting the group is substituted by the above hydrocarbon group. The above organic compound may have the formula of the substituent: -nrc(=〇)〇r 324121 37 201246647

The base shown by the formula, -NRC(=0)SR, the formula: _NRC(=s)〇R, the base, the formula, the base represented by NRC(=S)SR, and the formula: The base represented by c(=〇)NR2, the formula: -sc(=o)nr2a, the base, the formula: _〇c(=s)NR2, the base, the formula, SC(=S)Nr2 Base: Formula: -nrc(=〇) nR2 The base of the formula: -NRC(=S)NR2, κ has the same meaning as the plaque.

The above-mentioned organic compound may have a valence of a substituent, and a radical remaining after removing one hydrogen from a heterocyclic compound which may have a substituent. Examples of the heterocyclic ring of the heterocyclic compound include a bite ring, a 1,2-till ring, a diterpene ring, an M•bifluorene ring, a U ring y ratio t ring, a °e ring ring, a ring. 1 wow ring, material ring, . Evil, sputum, and second.丫 唾 环 a a a a a 专 专 专 专 ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; Aromatic = methyl, ethyl, and the like are two-valent cross-linking structures, of which an anthracene ring, a 12-dioxan ring, a U.s. ring, a fluorene ring, and a (1) triterpene ring are more preferred. (4) Ring, 1, 3, 5 · three-ring ring. In the U,5_upper to the middle, R, the examples of the extended hydrocarbon group can be exemplified by a sub-extension ethyl group, an i, a 2-extension propyl group, a propyl group, and a carbon atom number of 1 to 5 G. Saturated exoskeleton, m-single-dilute base, 2_-penpentenyl group, 2-stranded base, 2_(four) county, 2·material two counties, etc., carbon number 2 to 50! Unsaturated extended hydrocarbon group, extended ring Base, Cyclobutene, Cyclopentyl, Cyclopentene, 324121 38 5 201246647 Cyclone, Cyclodecyl, decyl, exemplified, etc. # - Atomic number 3 to a cyclic saturated hydrocarbon group of 5 〇, a vinyl group, a vinyl group, a propylene group, a butylene group, a 2-butenyl group, a 2-extenylene group, a 2-hexenylene group, and a Terpenyl, 2-extenyldecenyl and the like having 2 to 5 Å of a carbon atom, a phenyl group, a phenyl group, a phenyl group, an alkyl group, an anthracene group, an anthracene group An aromatic group having 6 to 50 carbon atoms such as an ex group, a biphenyl-4,4'-diyl group. The extended hydrocarbon group represented by :: R' may have a substituent. The substituent may be the same as the substituent which the above hydrocarbon group may have. When a plurality of substituents are present, the plurality of substituents present may be the same or different. In the above formula (I) to formula (IX), RC is excellent in solubility in a solvent, and therefore is preferably a methyl group, an ethyl group, a phenyl group, a naphthyl group or a 2-naphthyl group. In the above formula (I) and formula (II), m is preferably i to 2 Å, more preferably 3 20, still more preferably 3 to 15, most preferably 6 to 1 Å. In the above formula (III) to formula (IX), q is preferably 〇 to 30, more preferably 3 to 20, still more preferably 3 to 1 Torr, most preferably 6 to 1 Torr in the above formula (ΠΙ). . q is preferably 〇 to 3 〇, more preferably 〇 to 20, still more preferably 〇 to 1 〇, and most preferably 〇 to 5 in the above formulas (IV) to (VII). Preferably, it is from 0 to 30, more preferably from 20 to 20, still more preferably from 3 to 2, and most preferably from 3 to 10. q is preferably 〇 to 3 〇, more preferably 〇 to 20, still more preferably 〇 to 15, and most preferably 〇 to 1 在 in the above formula (IX). In the above formula, M' represents an anion', and examples thereof include F-, cr, Βγ, Γ, OH-, CIO·, C102-, C103., α〇4-, SCN·, CN-, νο3·, SO4. > HSO4 ' PO4 ' HP042 ' H2PO4'' BF4*' PF6'> CH3SO3 'CF3S03·,[(CF3S02)2N)]-, tetra (miso-based) acutate anion, 8_啥324121 39 201246647 porphyrin An anion, 2-mercapto-8-quinoline anion, 2_-phenyl-8-anthene anion. Preferred among the anions represented by M' are F, Cl·, Br·, Γ, bf4·, PFV, ch3so3-, cf3so3_, [(CF3S02)2N)]', tetracyl (boranyl) borate anions, More preferably, bf4-, pf6-, ch3s〇3-, cf3so3-, [(CF3S02)2N)r, tetrakis(imidazolyl) borate anion, most preferably CH3SO3, CF3SO3, [(CF3S〇2)2N)] , four (milk-based) borate anion. Preferable examples of the substituent which the above organic compound may have include a carboxyl group, a sulfo group, a hydroxyl group, a thiol group, an amine group, a hydrocarbon amine group, a cyano group, a "pyrrolidinyl group, a monovalent heterocyclic group, and the above formula. (1) A group represented by the above formula (II), and preferred examples thereof include a thiol group, a thiol group, a thiol group, a thiol group, an amine group, a hydrocarbon group, a cyano group, a pyrrolidinyl group, and a pyridine group. Further preferred examples of the group, the 1,3,5-trimethyl group and the group represented by the above formula (1) include a carboxyl group, a sulfo group, a thiol group, an amine group, a pyrrolidinyl group, a pyridyl group, and the above formula (I). The bases shown are particularly preferred examples thereof, such as a thiol group, a thiol group, an amine group, a σ ratio, a bite group, a B group, and a group represented by the above formula (I), and a preferred example thereof is a carboxyl group. And a thiol group, a β-bite group, and a group represented by the above formula (1), and a preferred example thereof is a group represented by the above formula (I). In the formula (XI), the group represented by X2 may be a formula: a group represented by a SM, a formula: a group of C(=0)SM, a formula: a group represented by a CS2M, and a formula: The base represented by OM, the formula: a group represented by C02M, a formula: a group represented by B(OM)2, a formula: -bR3M, a formula: a b(or)3iv [base shown , the formula: -S〇3M, the base, the formula: -so2m, the formula: -0P (=0) (0M) 2 base, formula: a p (= o) (om) 2 The base shown, 324121 40 5 201246647 wherein the preferred formula is: one C〇, M mail-> * ^ 2M is not based, the formula: _s〇3M shows the base, the formula: a so2m暴式·—— 〇p(=o)(om)2, the formula: one?(=0)(01^)2| The Gans$ base is not the base, and the better one is Examples of the base of the (2, 2, 2) valence of (2, 2, 2, 2, 2, 2, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4 The atomic group, the formula: - Ο,. , the base shown. ., ready to wear. The base of the (m +1) valence is preferably the original remaining after removing m2 hydrogen materials from the sulphur-based t-cut m2 ore-based sulphide group which can also have a substituent: The group, the atomic group left in the m2 (four) atom (4) from the 1st price, the atomic acid remaining after the m2 hydrogen atoms in the silky silk scarf, and the aromatic base towel replaced by the monovalent heterocyclic group The atomic group after removing m2 hydrogen atoms, more preferably the atomic group remaining after removing m2 hydrogen atoms from the alkyl group having 1 to 6 carbon atoms, and the remaining atomic group after removing m2 hydrogen atoms from the phenyl group The atomic group remaining after removing y hydrogen atoms from the three tillage base, the atomic group remaining after removing m2 hydrogen atoms from the alkyl group substituted by the trimorphine, and removing m2 from the aromatic group substituted by the three tillage group The atomic group remaining after one hydrogen atom, wherein the atomic group remaining after removing m2 hydrogen atoms from the hexyl group, the remaining atomic group after removing m2 nitrogen atoms from the phenyl group, and the benzene substituted by the three tillage group The atomic group remaining after removing m2 hydrogen atoms in the group. In the formula (XI), m2 is an integer of 1 or more, and is preferably an integer of 2 or more. In the formula (XI), η2 is an integer of 1 or more, and is preferably an integer of 2 or more. 324121 41 201246647 The (m2+i)-valent group represented by the above R may be substituted by a substituent which the above-mentioned organic compound having an aromatic ring may have. The definitions, specific examples, and preferred examples of the substituents are as described above. The organic compound having an anionic ionic group preferably has a polar group in addition to an anionic ionicity in order to improve electron injectability. The above polar group may be selected from the group consisting of a slow group, an exact group, a thiol group, a thiol group, an amine group, a hydrocarbon group, an aryl group, a oxime, a fluorene-like heterocyclic group, and the above formula (I) to formula (IX). The base of at least one of the groups formed by the base. Preferred examples of the polar group include a carboxyl group, a sulfo group, a hydroxyl group, a thiol group, an amine group, a hydrocarbon group, a cyano group, a pyrrolidinyl group, a heterocyclic group of an anthracene group, and a group represented by the above formula (I). The group represented by the above formula (11), and preferred examples thereof include a carboxyl group, a sulfo group, a hydroxyl group, a thiol group, an amine group, a hydrocarbon amine group, a cyano group, a specific bite group, an η-mercapto group, and 1, 3,5-二卩井基, a group represented by the above formula (1), and more preferred examples thereof include a carboxyl group, a sulfo group, a thiol group, an amine group, a pyrrolidinyl group, a pyridyl group, and the above formula (I). Examples of the base group include a carboxyl group, a thiol group, an amine group, a pyrrolidinyl group, a pyridyl group, and a group represented by the above formula (1). Preferred examples thereof include a carboxyl group, a thiol group, a pyridyl group, and the above formula. (1) The base of the above formula (1), and the most preferable examples thereof. Examples of the electron injecting material which can be used in the electron injecting layer 44 include a conjugated compound having a structural unit represented by the following formula (c-13) to formula (c-33) and formula (cM) to formula (d_45). . In the above formula, n3 represents an integer of 2 or more, preferably an integer of 2 to 30, more preferably an integer of 2 to 20, and most preferably an integer of 6 to 10. Η4 represents an integer of 1 or more, preferably an integer of i to 1 〇 324121 42 5 201246647, more preferably an integer of 2 to 6. R represents the same meaning as above, but is preferably an alkyl group having 1 to 6 carbon atoms, more preferably an anthracenyl group, an ethyl group, a propyl group or a butyl group. In the examples of the organic compound having an anionic ionic group, one or more hydrogen atoms in the structural unit may be substituted by a substituent, and the definitions and examples of the substituent are as described above.

(c-13) (〇14) (C-15)

C0?Cs %(〇Cs)2 $〇3Cs >6^12 νβ^12 ΡβΗΐ2 -ο- -ο-

(c-20) (〇21) (c-22) (c-23) (c-24)

324121 43 201246647

jC02Cs COzCs -γ- -v-

COgCs ^CJOjCs (d-6) (d-7) (d-8) (d-9) (d-10) J:02Cs l:02Cs C02Cs C02Cs P〇2Cs H Shangu A (d-11) (d -12) (d-13) (d-14) (d-15)

324121 44 201246647

(<W2)

ZOzCs

O2C8 Cs02C has a good yin and is better than the organic compound, because of the charge injection - (to the formula 4 =: = ^ (c · 32), the formula (called to the formula (four), the formula d 9, = ), Equation (,) to 2 ^ ^(d-31)^^(d.39) . ^ Co-tree of tectonic units) from 45); ^(c-2〇)^^0-22) ^ ^(.25)l^^13)^t(C-15)' (,, (6)), (4) (:27), (4) to j _), (Saki,; (d- 42)))))))))))) The structural monolith shown in the figure (4) has the common rim =), octagonal ((4)), formula (d_41), __42 of the structural unit represented by the formula (4), the formula (d =, formula = = 42). ) shown as a preferred compound. The conjugate of the early 70 is used as an anionic ionic group. The doping is preferably a ratio of from 4 parts by weight to 50 parts by weight per common. Examples of the use of the dopants include dentin, tooth compounds, road compounds, organometallic compounds, and metal detection. The quality of the metal such as soil test can be exemplified by gas, bromine, and iodine. Examples of the tooth compound include gasification disc, desert moth, and cesium fluoride. Louis I can list phosphorus pentafluoride, five gas fossils, five gasification records, and boron trifluoride. Rolling boron, boron tribromide, sulfuric anhydride, and the like. —, 1 sub-acid = hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, hydrogen I rotten acid, hydrofluoric acid, gas-filled inorganic antimony, and organic acids such as New Zealand and Germany. The organic nucleus may be an acid having a carbonyl group such as an aliphatic, aromatic or cyclic aliphatic group such as formic acid, acetic acid, oxalic acid, benzoic acid, p-dibenzoic acid, maleic acid, fumaric acid, malonic acid, tartaric acid. , citric acid, lactic acid, succinic acid, monochloric acid, di-acetic acid, tri-acetic acid, trifluoroacetic acid, nitroacetic acid, triphenylacetic acid. Examples of the organic acid-renewing include an organic acid having a sulfo group such as an aliphatic, an aromatic or a cyclic aliphatic group, such as a silicic acid, a p-toluene acid, a xylene sulfonic acid, a naphthoic acid, a decyl benzene, and a twelfth Yoshizai, fifteen-burning benzoic acid, 324121 46 201246647 fluorite, acid, 1-propofate, 1-butylic acid, 1-hexan acid, 1-hepte acid, 1 - octanoic acid, 1-anthracenesulfonic acid, 1-anthracenesulfonic acid, 1-dodecanesulfonic acid, ethyl phthalic acid, styrene acid, acrylinic acid, etc. Compound, with ethylene succinic acid, butyl succinic acid, glutaric acid, phthalic acid, benzenedisulfonic acid, naphthalene disulfonic acid, terephthalic acid, dimercaptobenzene disulfonic acid, diethyl A cross-acid compound having a plurality of contigs such as benzenedisulfonic acid, methylnaphthalene disulfonic acid, and ethylnaphthalene disulfonic acid. The organic acid can also be a polymeric acid. The polymer acid may, for example, be polyvinylsulfonic acid, polystyrenesulfonic acid, sulfonated styrene-butadiene copolymer, polyacrylic acidsulfonic acid, polydecylpropenesulfonic acid, poly-2-propenylamine-2- Mercaptopropanesulfonic acid, polyisoprene sulfonic acid. The nitrile compound may be exemplified by a compound having two or more cyano groups in the conjugate bond. Examples of the compound include tetracyanoethylene, tetracylethylene oxide, tetracyanobenzene, tetracyanoquinone dioxane, and tetracyanophthalene naphthalene. Examples of the organometallic compound include tris(4-bromophenyl)ammonium hexacarbonate, bis(dithiophenyl)nickel, bis(tetrabutylammonium)bis(1,3-dithiol-2- Thiol-4,5-disulfide ligand), tetrabutylammonium bis(1,3-dithiol-2-thio-4,5-disulfide ligand) nickel(III) Compound. Examples of the alkali metal include Li, Na, K, Rb, and Cs. Examples of the alkaline earth metal include Be, Mg, Ca, Sr, and Ba. Examples of the method of forming the electron injecting layer 44 include a vacuum vapor deposition method and a coating method. The method of forming the electron injecting layer 44 is preferably a coating method. The definitions and examples of the coating method are as described above. —Light Emitting Layer— The light-emitting layer 50 of the light-emitting element 10 is composed of a single layer structure of 324121 47 201246647 composed of only one layer, or a laminate of two or more layers. The luminescent material used for the light-emitting layer may, for example, be a conventional low molecular weight compound containing an organic compound, a high molecular weight compound containing an organic compound, or a triplet luminescent complex containing an organic compound. Examples of the above low molecular weight compound include a naphthalene derivative, an anthracene and a derivative thereof, an anthracene and a derivative thereof, a polyhydrazino group, a dibenzopyran system, a coumarin system, a cyanine-based pigment, and the like. a hydroxyquinoline metal complex, a metal complex of an 8-hydroxyindole derivative, an aromatic amine, tetraphenylcyclopentaene and derivatives thereof, tetraphenylbutadiene and derivatives thereof. Examples of the high molecular weight compound include a polymer and a copolymer having a second group as a structural unit (hereinafter referred to as "(co)polymer)", a (co)polymer having a aryl group as a structural unit, and a vinyl group. A (co)polymer which is a structural unit, a (co)polymer which has a divalent aromatic amine residue as a structural unit, and the like. Examples of the above-mentioned triplet luminescent complexes include ADS066GE which is sold by the following formula, Ir(ppy)3, Btp2Ir(acac), γ heart metal, and American Dye Source VIII. Trade name), PtOPp a corpse with platinum as the center metal, Eu(TTA) 3phen with ruthenium as the center metal. 324121 48 8 201246647

Ir(ppy)3

"Q: nCH, ><> is Η 0 fcH, Q '"-'Eu; 2 u* Btp2lr(acac) KJ

Eu(TTA)3phen, the thickness of the luminescent layer will vary depending on the material used. The thickness of the light-emitting layer should be selected so that the driving dust and the light-emitting efficiency can be appropriately set, and it is usually from 1 nm to 2, preferably from 2 to finer, more preferably from 5 nm to the thin legs. Good for % leg to 15 face. The method of forming the light-emitting layer 5G includes a vacuum vaporization method and a coating method. The merging of the luminescent layer is preferably a coating method. The definition and examples of the coating method are as described above. - Hole injection layer - In the light-emitting element 10 of the present invention, a hole injection layer can be formed using a hole-casting material. The light-emitting element of the present invention can have an electric layer between the light-emitting layer and the anode. The electric enamel layer is composed of a single layer composed of one system or a laminate composed of two or more layers. / / The material can be preferably used carbazole derivatives, triazole derivatives, derivative derivatives U to biological, material charm, (four) biology, ^ Fangxiang burning street bio-ϋ琳 derivative " specific derivatives, benzene February 324121 49 201246647 =Bio-Aromatic Amine Street Creature, Star Amine, Ugly Derived Derivative, Amino-Substituted Monoketone Hohhot, Styryl Anthracene Derivative, (IV) Derivative, Knee Derivative, Stilbene Derivative , external combustion, aryl (tetra) tertiary amine compound, the present vinylamine compound, aromatic secondary methyl (dimethyHd (four) systemic mouth substance i compound, polylithic compound, poly (N_Ethyl) Saliva), biological, organic Wei touch, and polymers containing the same; oxidative hunger, preparation of chemical crane, oxidation of 1 mesh, cerium oxide 'oxidized oxide conductive metal, compound; polyaniline, aniline copolymer. Conductive southern molecular materials and oligomers such as phenanthrene oligomers and polybenzazole; organic conductive materials such as poly(3,4 ethylenedioxy porphin), polystyrene acid, and H, and the like Polymer; amorphous carbon; 2,3,5,6_tetrafluoro_7,7,8,8_tetracyano molybdenum and other four-temperature brewing - 曱烧何生物1,4·naphthalene-based organisms,:: benzene-biological, poly-acylated, etc. Receptive organic compounds; ten-membered silk trimethoxy-Wei et al. A composition composed of a plurality of components may be used. The hole injection layer is a single layer structure composed of only a single hole injection material, or a hole injection material composed of the same composition or a different composition. The multilayer structure is composed of a plurality of layers. The thickness of the hole injection layer 42a varies depending on the material used. The thickness of the hole injection layer is such that the driving voltage and the luminous efficiency are appropriate values. Alternatively, it is usually 111111 to iwm, preferably 2 nm to 500 nm, more preferably 5 nm to 2 Å, and most preferably 5 nm to 100 nm. 324121 50 201246647 The method of forming the hole injection layer 42 may be vacuum evaporation. The method of forming the hole injection layer is preferably a coating method. The definition and examples of the coating method are as described above. One other layer, the light-emitting element of the present invention may further have a substrate and a hole. Transport layer The electron transporting layer, the electron injecting layer, the charge generating layer, etc. Examples of the forming method of the respective layers include a vacuum vapor deposition method and a coating method. Among these forming methods, a coating method is preferred. And the method is as described above. - Method for producing light-emitting element - The light-emitting element of the present invention can be produced by any method. Preferably, it can be produced by a method comprising the steps of: coating a coating liquid to form a film to form a cathode. The coating liquid contains a conductive material having an aspect ratio of less than 1.5; more preferably, it can be produced by a method comprising the steps of: coating an i-th liquid composition to form a film to form the electron injecting layer, The first liquid composition includes an organic compound having an anionic off-chiral group, and the second liquid composition is applied to form a film to form the cathode, and the second liquid composition includes a width and a height. Conductive material with a ratio lower than 15. The light-emitting element can be manufactured by, for example, sequentially laminating the above layers. The formation method of each layer is as described above. 9 An embodiment of the method for producing a light-emitting device of the present invention comprises the step of coating a film to form a cathode. In one embodiment of the method for producing a light-emitting element, it is preferred that the step of forming a cathode is carried out in addition to the step of coating a film to form a cathode, and the step of 324121 51 201246647 includes a step of separately coating all of the layers remaining outside the anode. In other words, one embodiment of the method for producing a light-emitting device includes a step of coating a film to form a cathode, and a step of applying a film to form a layer other than the anode. More preferably, an embodiment of the method for producing a light-emitting device further includes a step of coating a film to form an anode. In other words, one embodiment of the method for producing a light-emitting device includes a step of separately coating a film to form an anode and a cathode, or a step of separately coating a film to form all remaining layers except for a cathode and an anode. In an embodiment of the light-emitting device of the present invention, the light-emitting device is coated with a film to form a cathode. In a preferred embodiment, in addition to the cathode, each of the layers remaining outside the anode is further coated with ruthenium (in other words, all of the remaining layers of the cathode and the anode are formed by coating into a film). In a more preferred embodiment, the first coating is applied to the chevron (the age, the anode and the cathode are formed by coating), or the cathode and the anode are separately coated to form other remaining layers. (In other words, all layers are formed by coating). The construction of a light-emitting element - the hair piece (4) rides a layer to construct a money laminate structure. The product is a structure in which the anode is formed in the order of the anode, the light-emitting layer, the electron injecting layer, and the cathode, for example, on the substrate. Inverse phase: sequentially stacking electrodes from the cathode to the anode and organically formed structures, for example, on the substrate in accordance with the structure of the cathode, the electron beam 4, the light-emitting layer, and the anode. 324121 52 201246647 An example of the structure of the light-emitting element of the present invention is the structure of the following formula a); Examples of the inverse laminated structure include the structures of the formulas a) and b), and examples of the structure of the laminated layer include the structures of the formula c) and the formula d). a) cathode/electron injection layer/light-emitting layer/anode b) cathode/electron injection layer/(electron transport layer/) light-emitting layer/(hole transport layer/) (hole injection layer/) (charge generation layer/ ) ( Electron injection layer /) (electron transport layer /) (light-emitting layer /) (hole transport layer /) (hole, main layer /) anode / C) anode / luminescent layer / electron injection layer / cathode = / (electric Hole injection layer /) (hole transfer layer light-emitting layer / Μ = (electron injection layer /) (charge generation layer,) (hole injection layer /) (hole transfer layer /) (light-emitting layer /) (light layer /) (electronic Wheel/cathode V)!: Zhuangzhuang enters into person, and turns, "represents Bao Shuangji? Tiger/" layers are adjacent. a. The layers in the parentheses are independent, and may not be set with the electronic > main entry layer must Adjacent to the joint. The above layers may also be provided with a layer having a plurality of functional layers, and having at least one of the anode and the cathode, which is generally translucent. The upper layer (4) is made of any material: at the remaining thickness A bottom emission type that emits light from an exposed surface on the opposite side of the substrate on the opposite side of the substrate. Preferably, the substrate is bonded to the anode from the light-emitting 7L member, and the substrate is bonded to the anode in the thickness direction of the substrate: = 324121 53 201246647 The above-mentioned cathode side illuminating. When the illuminating element is of a reverse laminated structure: a bottom emission type structure can also be used, in which the substrate uses a transparent substrate having light transmissivity, and the transparent substrate is bonded to the cathode from the cathode Light-emitting on the side (substrate side). Application of a light-emitting element - A display device or a light-emitting device can be manufactured using the light-emitting element of the present invention. The display device is provided with a light-emitting element as a unit of a unit. The arrangement of the unit of the pixel can be taken on a television or the like. The arrangement commonly used in display devices can take the form of a plurality of elements arranged on one substrate. In the display device, the halogens arranged on the substrate can also be formed in the pixel area defined by the bank. <Photoelectric Conversion Element> An electron injection layer containing an organic compound having an anionic ionic group and a cathode containing a conductive material having an aspect ratio of less than 1.5 described above for the light-emitting element can also be applied to photovoltaic Conversion element. The following describes the photoelectric conversion element. Refer to Figure 2-1 and Figure 2-2 for photoelectric conversion. Example of configuration element will be described. FIG based on a schematic sectional view showing a configuration example (1) of the photoelectric conversion element.

1 is a schematic cross-sectional view showing a configuration example (2) of a photoelectric conversion element. The photoelectric conversion element according to an embodiment of the present invention has an anode, a charge separation layer, an electron injection layer, and a cathode, wherein the electron injection layer includes 324121 3 201246647 (4) An ionic compound-based compound having a conductive material having a width and a ruthenium ratio of less than 1.5. * The average number of conductive materials is preferably 10,000 nm or less, more preferably _nm or less, more preferably 5 〇〇 nm or less, particularly preferably 300 nm or less, and particularly preferably 1 〇〇 nm or less. Good is below 5 〇 nm. It is preferable that at least one of the cathode and the anode, particularly at least the electrode on the light incident side, is a transparent or translucent electrode. (Example 1) As shown in Fig. 2-1, the photoelectric conversion element 1 of the configuration example includes a counter electrode composed of the 11⁄4 pole 32 and the cathode 34, and a charge separation layer sandwiched between the pair of electrodes. 70. The photoelectric conversion element 1 of the configuration example (1) is a bulk heterojunction type photoelectric conversion element. The photoelectric conversion element is usually formed on a substrate. The photoelectric conversion element 1 is disposed on the main surface of the substrate 20. When the substrate 20 is opaque, it is preferable that the cathode 34 (i.e., the electrode farther from the substrate 20) opposed to the anode 32 and disposed on the opposite side of the substrate side is transparent or translucent. The charge separation layer 70 is connected to the anode 32 and the electron injection layer 44 to be held. The charge separation layer 70 is an organic layer containing an electron-accepting compound and an electron-donating compound, and has a photoelectric conversion function. An anode 32 is provided on the main surface of the substrate 20. The charge separation layer 70 is provided to cover the anode 32. The electron injection layer 44 is bonded to the charge separation layer 70. The cathode 34 is coupled to the electron injection layer 44. 324121 55 201246647 In the photoelectric conversion element 10 of the above configuration example (1), the charge separation layer 70 is provided with a structure in which an electron-accepting compound and an electron-donating compound are contained in a single layer. Therefore, more heterojunction is contained, and photoelectric conversion efficiency is further improved. Therefore, it is better. (2) As shown in Fig. 2-2, the photoelectric conversion element of the configuration example (2) includes a counter electrode formed of the anode 32 and the cathode 34, and a charge separation layer sandwiched between the pair of electrodes. 70. The charge separation layer 7 is composed of an electron-accepting layer 74 containing an electron-accepting compound and an electron-donating layer 72 bonded to the electron-accepting layer 74 and containing an electron-donating compound. The photoelectric conversion element 1 of the configuration (2) is a heterojunction type photoelectric conversion element. The photoelectric conversion element 10 is provided on the main surface of the substrate 20. An anode 32 is provided on the main surface of the substrate 20. The charge separation layer 70 is connected to the anode 32 and the electron injection layer 44 to be held by it. The charge separation layer 70 of the second embodiment is a laminate structure in which an electron-accepting layer 74 containing an electron-accepting compound and an electron-donating layer 72 containing an electron-donating compound are bonded. The electron donating layer 72 is configured to be bonded to the anode 32. The electron accepting layer 74 is bonded to the electron donating layer '72 〇, and the electron injecting layer 44 is bonded to the electron accepting layer 74. Cathode: The lanthanide is designed to be bonded to the electron injection layer 44. One charge-separating layer-charge-separating layer 70 may contain an electron-donating compound and an electron. 324121 56 201246647 The accepting compound may be used alone or in combination of two or more. Wherein, the electron donating compound and the above electron accepting compound are relatively dependent on the energy level of the compound. Examples of the electron-donating compound include a pyrazoline derivative, an aromatic amine derivative, a stilbene derivative, a triphenylenediamine derivative, and a conjugated polymer compound. Examples of the covalently consumed polymer compound include oligophene and its derivatives, polyfluorene and its derivatives, polyvinyl hydrazine and its derivatives, polydecane and its derivatives, and side chains or main chains having aromatic amines. Polyoxyalkylene derivatives, polyanilines and their derivatives, polypyrrole and its derivatives, polystyrene and its derivatives, polybenzamine ethylene and its derivatives. Examples of the electron accepting compound include oxadiazole derivatives, anthracene, quinodimethane and derivatives thereof, alum and its derivatives, naphthoquinone and its derivatives, anthracene and its derivatives, and tetracyanoquinone Methane and its derivatives, ruthenium derivatives, monophenyldicyanethylene and its derivatives, diphenyl hydrazine derivatives, metal complexes of hydroxyquine and its derivatives, polyquinoline and its derivatives, poly Quinoxaline and its bamboo organisms, polydipeptides and derivatives thereof, fullerenes such as C6 fullerene and their organisms, phenanthrene derivatives such as batholine, metal oxides such as titanium oxide, and carbon nanotubes. The thickness of the charge separation layer is preferably from (10) to 1 Å/m, more preferably from 2 to 100 nm, still more preferably from 5 Å to 200 nm. The method of producing a charge-separating layer is exemplified by a vacuum distillation method and a coating method, and a coating method is preferred. The coating method is as described above. 324121 57 201246647 - In the layer-to-electrical conversion 70 member 10 other than the charge separation layer, for example, between the electrode of the anode 32 and the cathode 34 and the charge separation layer, for example, it is possible to improve charge injection or electron transport. Additional layers of sexual functions, etc. Examples of the additional layer include an electron injection layer, a hole injection layer, a hole feed layer, and an electron transfer layer. As for the layer other than the charge separation layer, the cathode, the anode, the substrate, the electron injection layer, the hole injection layer, the hole transport layer, and the electron transport layer, the same configuration as the light-emitting element described above can be employed. - Method for Producing Photoelectric Conversion Element - A method for producing a photoelectric conversion element according to an embodiment of the present invention, which comprises producing 70 pieces of photoelectric conversion having an anode, a charge separation layer, an electron injecting layer, and a cathode, comprising the steps of: coating The liquid composition is formed into a film, whereby the electron injecting layer is formed, and the first remaining component contains an anionic ionic (tetra) organic compound; and the second liquid component is applied to form a second liquid composition In the cathode, the second liquid composition includes the conductive material having an aspect ratio of less than 1.5. The photoelectric conversion element can be manufactured by, for example, sequentially laminating the above layers on a substrate. The method of forming each of the above layers for the charge separation layer can be carried out in the same manner as the light-emitting element described. The embodiment of the method for producing a photoelectric conversion element of the present invention comprises the step of coating a film to form a cathode. In a preferred embodiment, in addition to the step of applying a film to form a cathode, a step of separately coating all of the layers other than the anode is formed (in other words, a method of manufacturing the photoelectric conversion element 324121 58 201246647) One embodiment includes a step of applying a film to form a cathode, and a step of applying a film to form a layer other than the anode. • In the embodiment 11 further, the step of coating the film to form the anode (in other words, one embodiment of the method for producing the photoelectric conversion element includes the steps of separately coating the film to form the anode and the cathode), or In addition to the cathode and the anode, a step of separately coating the film to form all remaining layers (including the step of separately coating the film to form all the layers) is also included. EXAMPLES Hereinafter, the examples and comparative examples will be specifically described, but the present invention is not limited to the following examples. &lt;Analytical method&gt; The weight average molecular weight (Mw) and the number average molecular weight (??) of the conjugated compound were determined by gel permeation chromatography (GPC^Tosoh Co., Ltd., trade name: HLC-8220GPC). The number average molecular weight and weight average molecular weight in terms of styrene. Further, the measured sample was dissolved in tetrahydrogen nitration to a concentration of about 0.5% by weight, and then injected into 5 〇 v 1 to GPC. Then, tetrahydrofuran was used as the mobile phase of GPC, and flowed at a flow rate of 0.5 ml/min. The detection wavelength was set to 254 nm. The structural analysis of the conjugated compound was carried out by 1H-NMR analysis using a 300 MHz NMR spectrometer (manufactured by Varian Co., Ltd.). Further, in the 1h-NMR analysis, the sample was dissolved in a soluble solvent to have a concentration of 20 mg/ml. <Synthesis Example 1 &gt; (Synthesis of a total of compound P-3) 2,7-dibromo_ 9_fluorenone 52.5g (〇.l6mol), ethyl salicylate 324121 59 201246647 154.8g (0,93mol), and thiol acetic acid i.4g (0.016mol) were placed in a 3000ml flask and used in the flask Methanesulfonic acid (630 ml) was added to the flask in which the gas had been replaced with nitrogen, and then the mixture was stirred overnight at 75 °C. The reaction solution was then left to cool and then added to ice water for 1 hour. The resulting solid was filtered and washed with heated acetonitrile. The washed solid was then dissolved in acetone, and the solid was recrystallized from the resulting acetone solution and then filtered. Next, the obtained solid (62.7 g), 2-[2-(2-oximeoxyethoxy)ethoxy]ethoxy-p-oxalyl sulfonate 86.3 g (0.27 mol), potassium carbonate 62.6 g ( 0.45 mol), and 18-crown-6 7.2 g (0.027 mol) dissolved in n,N-dimercaptodecylamine (DMF) (670 ml)' and then transferred the solution to the flask and stirred at 105 {_C overnight . The reaction solution was then allowed to cool to room temperature, then ice water was added to the flask and the mixture was stirred for 1 hour. Then, chloroform was added to the reaction liquid to carry out liquid separation extraction, and the solution was concentrated to obtain 2,7-dibromo-9,9-bis[3-ethoxycarbonyl-4-[242- represented by the following formula. (2-methoxyethoxy)ethoxy]ethoxy]phenyl]• (Compound B) (51.2 g). The yield was 31%.

Compound B (l5g), bis(pinacol) diboron (8.98), (1) broad double (two scales)-pentane were placed in a 1 〇〇〇 ml flask filled with argon gas. Iron] monochlorolG(II) dichloroindole sulphur complex (o.gg), 1,1, bis (diphenylphosphino)ferrocene (〇.5g), acetic acid unloading (9.4g), and Dioxin (4〇〇mi) 324121 60 5 201246647 Mix and heat to 110 ° C and heat to reflux for ίο hours. Place the cooling - then 'pass the reaction solution' and concentrate the mash under reduced pressure. The concentrate was then washed three times with methanol. The washed concentrate is then dissolved in methanol and scavenging is carried out by adding activated carbon to the solution. Then, the mixture was allowed to transition, and the filtrate was concentrated under reduced pressure to obtain 2,7-bis(4,4,5,5-tetradecyl-1,3,2-dioxabenzene as shown in the following formula). Cyclopentene ((1丨〇\&amp;13〇1*〇1&amp;116)-2_yl)-9,9-bis[3-ethoxycarbonyl-4-[2-[2-(2-) Oxyethoxyethoxy)ethoxy]ethoxy]phenyl]-(Compound D) (ll_7g).

Compound B (0.55 g), compound D (0.61 g), tetrakistriphenylphosphine palladium (O.Olg), methyl chloride chloride were used in a flask of internal volume in which the gas had been replaced by argon. Ammonium (manufactured by Aldrich, trade name Aliquat 336 (registered trademark)) (0.20 g) and benzene (i〇mi) were mixed, and then heated to i〇5〇C. Then, a 2 M aqueous sodium carbonate solution (6 ml) was added dropwise to the reaction mixture, followed by reflux for 8 hours. Then, 4-tris-butylphenylborate (〇.〇lg) was added to the reaction mixture, followed by reflux for 6 hours. Then, an aqueous solution of sodium diethyldithiocarbamate (10 ml' concentration: 〇.〇5 g/mi) was added thereto, and the mixture was stirred for 2 hours. The reaction liquid was added to 300 ml of decyl alcohol and stirred for 1 hour, and then the precipitate was filtered, dried under reduced pressure for 2 hours, and dissolved in 20 ml of tetrahydrofuran. The obtained solution was added dropwise to a mixture of decyl alcohol and a 3% by weight aqueous acetic acid solution, 324121 61 201246647, and stirred for 1 hour, and then the precipitated chamber was filtered, and then the force: = coffee 2 〇 &quot; The solution obtained above is the island of the island. The mixture was stirred for 3 minutes in 〇〇ml, and then the precipitate was poured into a hydrazine to give a solid. The solid was dissolved in tetrahydrofuran and sequentially purified by an oxygen tilt column and a transfer column. After concentrating the ^=fuman solution recovered from the column, methanol is added dropwise, and the precipitated (4) is filtered, and then (4), # is converted to a test compound (T-called "common compound P-3") 520 mg . From. As a result of miR, it was found that the compound compound p_3 had a structural unit represented by the following formula. The number average molecular weight of the polyphenylene oxide of the total compound p_3 was 5.2 x 104.

&lt;Synthesis Example 2&gt; (Synthesis of Conjugated Compound p_4) The conjugated compound P-3 (20 mg) was placed in a flask having a volume of i〇〇mi, and the gas in the flask was replaced with nitrogen. Tetrahydrofuran (20 ml) and ethanol (20 ml) were added thereto, and the temperature of the mixture was changed to 55, and water (2 ml) was added with water (2 mg) of water &gt; After stirring at 55 ° C for 6 hours, the reaction liquid was cooled to room temperature, and the solvent was distilled off therefrom under reduced pressure to give a solid. Then, the solid was purified by water, and then dried under reduced pressure to obtain 150 mg of a conjugated compound (hereinafter referred to as "conjugated compound P-4") having a structural unit represented by the following formula. 70 324121 62 201246647

From the results of NMR spectroscopy, it was confirmed that the ethyl group-derived signal of the ethyl ester moiety of the conjugated compound p_3 had completely disappeared. &lt;Synthesis Example 3&gt; (Synthesis of Hole Transport Material B) 2,7·Dibromo-9,9-di(octyl)phosphonium (1.4 g, 2.5 mm〇l), 2 under an inert gas atmosphere ,7-bis(4,4,5,5-tetradecyl-1,3,2-dioxa-heterocyclopenten-2-yl)-9,9-di(octyl)anthracene (6.4 g , lO.Ommol), N,N-bis(4-bromophenyl)-N', N'-bis(4-butylphenyl)_ι,4·phenylenediamine (4.lg, 6mmol), double (4-Mo phenyl) benzocyclobuteneamine (0.6 g, 1.5 mmol), tetraethylammonium hydroxide (1.7 g, 2.3 mm 〇l), acetic acid (4.5 mg, 〇. 〇 2 mmol), three (2 _ The indole phenyl)phosphine (〇.03g, 〇.〇8mmol) and toluene (i〇〇ml) were mixed, and then the mixture was heated at 10 ° C for 2 hours and stirred. Next, phenylboronic acid (〇.〇6g '0.5mmol) was added thereto, and the resulting mixture was stirred for a few hours. After leaving to cool, the aqueous layer was removed from the reaction solution, and then aqueous sodium diethyldithioacetate solution was added and stirred, and then the aqueous layer was removed, and then the organic layer was washed in the order of water and a 3% by weight aqueous acetic acid solution. The organic layer was then injected into methanol to produce a precipitate. The precipitate obtained by filtration was then redissolved in toluene and passed through a ruthenium column and an alumina column. The toluene solution is then recovered and injected into the sterol to produce a precipitate. The precipitate was taken by filtration and then taken at 5 Torr. (: Vacuum drying was carried out to obtain a polymer compound (hereinafter referred to as "hole transport material B" by 324121 63 201246647) (12.lg). According to gel permeation chromatography, polystyrene conversion of hole transport material B The weight average molecular weight is 3.Ox 1〇5, and the molecular weight distribution index (Mw/Mn) is 3.1. The hole transporting material B is a structural unit represented by the following formula:

And the structural unit shown by the following formula··

4η9 and the structural unit shown by the following formula:

The copolymer was composed in which the molar ratio was 62.5 : 30 : 7.5 (the theoretical value of the filling amount of the raw material). &lt;Synthesis Example 4&gt; (Synthesis of luminescent material Β) 2,7-dibromo-9,9-di(octyl)anthracene (9.0 g, 16.4 mmol), hydrazine, Ν'- under an inert gas atmosphere Bis(4-bromophenyl)-indole, Ν'_bis(4-tert-butyl-2,6-diphenylene)-1,4-phenylenediamine (1.3 g, 1.8 mmol), 2 ,7-bis(4,4,5,5-tetradecyl-1,3,2·dioxaborolan-2-yl)-9,9-di(hexylphenyl)anthracene (13.4) g, 18.0 mmol), tetraethylammonium hydroxide (43.0 g, 324121 64 Γδ) 201246647 58.3 mmol), acetic acid (8 mg, 〇.〇4 mm〇l), tris(2_ 曱oxyphenyl) scale (0.05 g, O.immol), and toluene (2 〇〇ml) were mixed, and then the mixture was heated at 90 ° C for 8 hours and stirred. Next, phenylboronic acid (0.22 g '1.8 mmol) was added thereto, and the resulting mixture was stirred for 14 hours. After standing to cool, the aqueous layer was removed from the reaction mixture, and then aqueous sodium diethyldithioacetate solution was added and stirred. Then, the aqueous layer was removed from the reaction liquid, and then the organic layer was subjected to water and 3 weights. /. The aqueous acetic acid solution was washed sequentially. The resulting organic layer is then injected into a decyl alcohol towel to produce a precipitate which is then dissolved in a sputum and passed through a ruthenium column and an alumina column. The toluene solution is then recovered and injected into the sterol to produce a sink. The work was vacuum dried in 5th generation, thereby obtaining

Construction unit with the following designation: 324121 65 201246647

The copolymer is composed of a molar ratio of 50:45:5 (theoretical value of the filling amount of the raw material). &lt;Example 1&gt; (Production of light-emitting element k-Ι) on a glass substrate on which an ITO film is formed 'Poly(3,4-extended ethyldioxythiophene)·polystyrenesulfonic acid (made by HC Starck, PEDOT: PSS solution, trade name: CLEVIOS (registered trademark) p vp AI 4083) 0.5 ml was applied onto the ITO film, and a film having a thickness of 7 〇 nm was formed by spin coating to serve as an anode. Then, the glass substrate obtained above was heated in air at 200 t for 1 minute, and then naturally cooled to room temperature, whereby a glass substrate A on which a hole injection layer was formed was obtained. 5.2 mg of the above-mentioned hole transporting material B was mixed with 1 ml of xylene to prepare a composition for a hole transporting layer containing 0.6% by weight of the hole transporting material B. The composition for a hole transport layer was applied onto the glass substrate A on which the above-described hole injection layer was formed by a spin coating method to form a coating film having a thickness of 33 nm. Then, the glass substrate on which the coating film was formed was heated in a nitrogen atmosphere at 200 ° C for 10 minutes to insolubilize the coating film, and then naturally cooled to room temperature, thereby obtaining a glass substrate F on which a hole transport layer was formed. . The above-mentioned luminescent material B (11.3 mg) was mixed with imi of xylene to prepare a composition for a light-emitting layer containing 1.3% by weight of luminescent material B. 324121 66 201246647 The composition for a light-emitting layer was coated by a spin coating method. A coating film having a thickness of 99 nm was formed on the glass substrate F on which the hole transport layer was formed. Then, the substrate on which the coating film was formed was placed under a nitrogen atmosphere at 13 Torr. (: heating for 15 minutes, evaporating the solvent, and then allowing it to naturally cool to room temperature, thereby obtaining a glass substrate G formed with a light-emitting layer. ^ Mixing a compound P-4 (2.0 mg) with 1 ml of methanol 0.2% by weight of a composition for an electron injecting layer was prepared. The composition for an electron injecting layer was applied onto a glass substrate G on which a light emitting layer was formed by a spin coating method to form a coating film having a thickness of 10 nm. The substrate on which the coating film was formed was heated in a nitrogen atmosphere at 13 ° C for 10 minutes to evaporate the solvent, and then naturally cooled to room temperature, thereby obtaining a glass substrate H on which an electron injecting layer was formed. A cathode composition (NPS_JL, manufactured by Holima Chemical Co., Ltd., aspect ratio of silver particles: 1.0) of a silver nanoparticle dispersion having a uniform average phenanthrene diameter of 7 nm was applied to a glass substrate on which an electron injection layer was formed. Η" forming a coating film having a thickness of about 30 # m. Then, the substrate on which the coating film is formed is heated in a nitrogen atmosphere for 15 minutes in a TC for 60 minutes to evaporate the solvent, thereby allowing the substrate to be naturally cooled to room temperature. Obtaining a glass substrate formed with a cathode. The glass substrate I on which the cathode was formed was sealed with a two-liquid mixed epoxy resin (trade name: PX681C/NC, manufactured by Robnorresins Co., Ltd.) under a nitrogen atmosphere to produce a light-emitting element (hereinafter referred to as " Light-emitting element k-1"). A forward voltage of 14 V was applied to the light-emitting element k-Ι, and the light-emitting luminance derived from the light emitted from the anode side in the thickness direction of the glass substrate was measured. Conclusion 324121 67 201246647 The light-emitting luminance was 1.49 cd. &lt;Comparative Example 1&gt; (Production of Light-Emitting Element k-2) A light-emitting element (hereinafter referred to as "lighting" was produced in the same manner as in Example 1 except that the composition for an electron injecting layer of Example 1 was not used. Element k-2"). A forward voltage of 14 V was applied to the light-emitting element k-2. However, no light emission was observed. <Example 2> (Production of Light-emitting element k-3) In addition to the use of the polymer purchased from Plextronics The AQ-1200 of the hole injecting material of the sinter and the acid-repellent system replaces the poly(3,4-extended ethylenedioxy porphin)·polystyrene acid (HC) of the cavity injection material solution of Example 1. Starck's PEDOT: PSS solution, commodity : CLEVI0S (registered trademark) P VP AI 4083); a cathode composition using a number average silver nanoparticle dispersion having a fluorescing diameter of 8 〇 nm (containing 25.0% by weight of MDot-SLP, manufactured by MITSUBOSHI BELTING, silver) The aspect ratio of the particles: 1.0, 75.0 wt% of methanol) to replace the cathode composition of the number average silver nanoparticle dispersion having a phenanthrene diameter of 7 nm of Example 1 (NPS-JL, manufactured by Halima Chemicals) In the same manner as in Example 1, a light-emitting element (hereinafter referred to as "light-emitting element k-3") was produced in the same manner as in Example 1. A forward voltage of 12 V was applied to the light-emitting element k-3, and the light-emitting luminance derived from the light emitted from the anode side in the thickness direction of the glass substrate was measured. As a result, the luminance of the light was 3.66 cd/m2. &lt;Example 3&gt; (Production of Light-Emitting Element k-4) In addition to the use of Cathode Composition 2 (containing 24.95% by weight of MDot-SLP, 〇.2% by weight of pyridinecarboxylic acid planer, 74.85% by weight of sterol) ) to take 324121 68 5 201246647

In the same manner as in Example 2, a light-emitting device (hereinafter referred to as "light-emitting device k-4" was produced in the same manner as in Example 2, except that the composition for the cathode of the second embodiment (MDot-SLP, MITSUBOSHI BELTING ^ 'the aspect ratio of the silver particles: 1.0) was used. ). A forward voltage of 12 V was applied to the light-emitting element k-4, and the light-emitting luminance derived from the light emitted from the anode side in the thickness direction of the glass substrate was measured. As a result, the luminance of the light was 2.61 cd/m2. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a view schematically showing an example of a configuration of a light-emitting element. Figure. Fig. 2-1 is a schematic cross-sectional view showing a configuration example (1) of the photoelectric conversion element. 2-2 is a schematic cross-sectional view showing a configuration example (2) of the photoelectric conversion element. [Main element symbol description] 10 Light-emitting element, photoelectric conversion element 20 Substrate 22 First substrate 24 Second substrate 32 Anode 34 Cathode 42a Hole injection Layer 42b Hole transport layer 44 Electron injection layer 50 Light-emitting layer 324121 69 201246647 60 Multi-layer structure 70 Charge separation layer 72 Electron-providing layer 74 Electron-accepting layer 324121

Claims (1)

201246647 VII. Patent application scope: 1. A light-emitting element having an anode, a light-emitting layer, an electron injection layer and a cathode, the electron injection layer comprising an organic compound having an anionic ionic group, the cathode having an aspect ratio Conductive material below 1.5. 2. The light-emitting element according to claim 1, wherein the cathode contains an ionic compound. 3. The light-emitting element according to claim 2, wherein the ionic compound has a structure represented by the following formula (hh-Ι); Mm'+aX,n'-b(hh-l) In (hh-1), Mm'+ represents a metal cation; X'n'_ represents an anion; a and b are each an integer of 1 or more independently; when a plurality of Mm'+ and X'n'- are present, Mm '+ and X'n'_ can be the same or different). 4. The luminescent element of claim 3, wherein the metal cation is an alkali metal cation or a soil metal cation. 5. The light-emitting element according to claim 1, wherein the organic compound has a polystyrene-equivalent number average molecular weight of 3 x 10 or more. 6. The light-emitting element according to claim 1, wherein the organic compound is a compound compound. 7. The light-emitting element according to claim 6, wherein the conjugated compound is a conjugated compound represented by the following formula (XI); 324121 1 201246647 (In the formula (XI), Ar2 is an (n2+2)-valent aromatic group, R2 is a single bond or a (m2+l)-valent group, and X2 is a group selected from the formula: a SM, and a formula: C(=0)SM shows the base, formula: a base represented by CS2M, a formula: a base represented by OM, a formula: a group represented by C02M, and a formula: a base represented by B(OM)2 Formula: a base represented by a br3m, a formula: a base represented by b(or)3m, a formula: a base represented by a so3m, a formula: a base represented by a so2m, a formula: an op (=o) a group represented by (om) 2, and a formula: at least one of a group consisting of a group represented by p(=o)(om)2; R represents a hydrogen atom, or may have a substituent a hydrocarbon group; Μ represents a metal cation or an ammonium cation which may also have a substituent; m2 and η2 are each an integer of 1 or more independently). 8. The light-emitting element according to claim 7, wherein the X2 is a group of the formula: C02M. 9. The light-emitting element according to claim 1, wherein the organic compound has a carboxyl group, a sulfo group, a hydroxyl group, a thiol group, an amine group, a hydrocarbon group, a cyano group, a pyrrolidinone group, and 1 a polar group of at least one of a heterocyclic group of a valence group and a group represented by the following formula (1) to formula (IX); -0-(R, 0)mR,, (I) 324121 2 8 201246647 R 2 - Wm (II) -S-(R,S)q-R,,(III) -C(=0) - (R,_ C(=0))q- R,,(IV) - C(=S) — (R,_ C(=S))q- R' ' (V) -N{(R')qR,,}2 (VI) -C(=0)0 - (R, A C(=0)0)q - R,,(VII) _ C(=0) - O _ (R,0)q - R,, (VIII) -NHC(=0) - (R,NHC( =0))q — R,, (IX) (In the formulae (I) to (IX), R′ represents a hydrocarbon group which may have a substituent; R′′ represents a hydrogen atom, and a hydrocarbon group which may have a substituent a carboxyl group, a sulfo group, a hydroxyl group, a thiol group, an amine group, a group represented by NRe2, a cyano group or a group represented by C(=0)NRe2; R''' represents a trivalent group which may also have a substituent a hydrocarbon group; m represents an integer of 1 or more; q represents an integer of 0 or more; and Rc represents a carbon which may have a substituent An alkyl group having a number of 1 to 30 or an aromatic group having 6 to 50 carbon atoms which may have a substituent; when a plurality of the R', the R", and the R''' respectively exist, the R', The R" and the R''' may be the same or different). 10. The light-emitting element according to claim 1, comprising a hole injection layer disposed between the light-emitting layer and the anode. 11. The light-emitting element according to claim 1, wherein the conductive material has an average number of phenomenological diameters of 1 OOO nm or less. 12. The light-emitting element according to claim 1, wherein the conductive material contains one or more materials selected from the group consisting of metals, metal oxides, and carbon materials of 324121 3 201246647. 13. The light-emitting element of claim 12, wherein the conductive material is silver. A method of producing a light-emitting device, comprising: producing a light-emitting element having an anode, a light-emitting layer, an electron injection layer, and a cathode; and comprising: a step of applying the first liquid composition to form the electron injection layer, the first step The liquid composition includes an organic compound having an anionic ionic group; a step of forming a second liquid composition to form the cathode, and the second liquid composition includes conductivity having an aspect ratio of less than 1.5 material. 15. The method for producing a light-emitting device according to claim 14, wherein the second liquid composition further contains an ionic compound. 324121 8