WO2014092362A1 - 유기전기 소자용 화합물, 이를 이용한 유기전기소자 및 그 전자 장치 - Google Patents
유기전기 소자용 화합물, 이를 이용한 유기전기소자 및 그 전자 장치 Download PDFInfo
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- 0 CC1(C)c(c2c(*(C)(C)c3ccccc3-3)c-3ccc2cc2)c2-c2ccccc12 Chemical compound CC1(C)c(c2c(*(C)(C)c3ccccc3-3)c-3ccc2cc2)c2-c2ccccc12 0.000 description 4
- KKNNAOAUEWYPOW-UHFFFAOYSA-N CC1(C)c(c2c3[o]c4ccccc4c3ccc2cc2)c2-c2ccccc12 Chemical compound CC1(C)c(c2c3[o]c4ccccc4c3ccc2cc2)c2-c2ccccc12 KKNNAOAUEWYPOW-UHFFFAOYSA-N 0.000 description 2
- ZQSQHKSNCURGHC-UHFFFAOYSA-N CC(C)(C)c1ccc2[o]c3c(c4c(cc5)-c6ccccc6C4(C)C)c5ccc3c2c1 Chemical compound CC(C)(C)c1ccc2[o]c3c(c4c(cc5)-c6ccccc6C4(C)C)c5ccc3c2c1 ZQSQHKSNCURGHC-UHFFFAOYSA-N 0.000 description 1
- USZLQEIYYWORHV-UHFFFAOYSA-N CC1(C)c(c(c(cc2)ccc3c4c5)c3[o]c4ccc5-c3ccccc3)c2-c2c1ccc(-c1ccccc1)c2 Chemical compound CC1(C)c(c(c(cc2)ccc3c4c5)c3[o]c4ccc5-c3ccccc3)c2-c2c1ccc(-c1ccccc1)c2 USZLQEIYYWORHV-UHFFFAOYSA-N 0.000 description 1
- QSTVBYKNUPQGIF-UHFFFAOYSA-N CC1(C)c(c2c(C3(c4ccccc4-c4ccccc34)c3ccccc3-3)c-3ccc2cc2)c2-c2ccccc12 Chemical compound CC1(C)c(c2c(C3(c4ccccc4-c4ccccc34)c3ccccc3-3)c-3ccc2cc2)c2-c2ccccc12 QSTVBYKNUPQGIF-UHFFFAOYSA-N 0.000 description 1
- AKMPSSPIYWBNNQ-UHFFFAOYSA-N CC1(C)c2c(c(C3(C)C)c(cc4)-c5c3ccc(-c3ccccc3)c5)c4ccc2-c2ccccc12 Chemical compound CC1(C)c2c(c(C3(C)C)c(cc4)-c5c3ccc(-c3ccccc3)c5)c4ccc2-c2ccccc12 AKMPSSPIYWBNNQ-UHFFFAOYSA-N 0.000 description 1
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- C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D495/04—Ortho-condensed systems
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/636—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom
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- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
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- H10K85/649—Aromatic compounds comprising a hetero atom
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- H10K85/654—Aromatic compounds comprising a hetero atom comprising only nitrogen as heteroatom
Definitions
- the present invention relates to a compound for an organic electric device, an organic electric device using the same, and an electronic device thereof.
- organic light emitting phenomenon refers to a phenomenon of converting electrical energy into light energy using an organic material.
- An organic electric element using an organic light emitting phenomenon usually has a structure including an anode, a cathode, and an organic material layer therebetween.
- the organic layer is often made of a multi-layer structure composed of different materials in order to increase the efficiency and stability of the organic electric device, for example, it may be made of a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and an electron injection layer.
- the material used as the organic material layer in the organic electric element may be classified into a light emitting material and a charge transport material such as a hole injection material, a hole transport material, an electron transport material, an electron injection material and the like according to a function.
- Efficiency, lifespan, and driving voltage are related to each other, and as efficiency increases, the driving voltage decreases relatively, and as the driving voltage decreases, crystallization of organic materials due to Joule heating generated during driving decreases. It shows a tendency to increase the life.
- a light emitting auxiliary layer must exist between the hole transport layer and the light emitting layer, and different light emitting auxiliary according to each light emitting layer (R, G, B). It is time to develop the floor.
- electrons are transferred from the electron transport layer to the light emitting layer, and holes are transferred from the hole transport layer to the light emitting layer to generate excitons by recombination.
- the OLED device is mainly formed by a deposition method, which requires development of a material that can withstand a long time during deposition, that is, a material having strong heat resistance.
- the materials constituting the organic material layer in the device such as a hole injection material, a hole transport material, a light emitting material, an electron transport material, an electron injection material, a light emitting auxiliary layer material, etc. Supported by the material should be preceded, but development of a stable and efficient organic material layer for an organic electric device has not been made yet. Therefore, the development of new materials is continuously required, and in particular, the development of materials for the light emitting layer, the light emitting auxiliary layer, and the hole transport layer is urgently required.
- An object of the present invention is to provide a compound capable of improving high luminous efficiency, low driving voltage, high heat resistance, color purity, and lifetime of an element, an organic electric element using the same, and an electronic device thereof.
- the present invention provides a compound represented by the following formula.
- the present invention provides an organic electronic device using the compound represented by the above formula and an electronic device thereof.
- FIG. 1 is an exemplary view of an organic electroluminescent device according to the present invention.
- halo or halogen as used herein is fluorine (F), bromine (Br), chlorine (Cl) or iodine (I) unless otherwise indicated.
- alkyl or “alkyl group” has a single bond of 1 to 60 carbon atoms, unless otherwise indicated, and is a straight chain alkyl group, branched chain alkyl group, cycloalkyl (alicyclic) group, alkyl-substituted cyclo Radicals of saturated aliphatic functional groups, including alkyl groups, cycloalkyl-substituted alkyl groups.
- heteroalkyl group means that at least one of the carbon atoms constituting the alkyl group has been replaced with a heteroatom.
- alkenyl group or “alkynyl group”, unless stated otherwise, has a double or triple bond of 2 to 60 carbon atoms, and includes a straight or branched chain group, and is not limited thereto. It is not.
- cycloalkyl refers to alkyl forming a ring having 3 to 60 carbon atoms, without being limited thereto.
- alkoxyl group means an alkyl group to which an oxygen radical is attached, and unless otherwise specified, has a carbon number of 1 to 60, and is limited herein. It is not.
- alkenoxyl group means an alkenyl group to which an oxygen radical is attached, and unless otherwise stated, it is 2 to 60 It has carbon number of, It is not limited to this.
- aryloxyl group or “aryloxy group” means an aryl group to which an oxygen radical is attached, and unless otherwise specified, has a carbon number of 6 to 60, but is not limited thereto.
- aryl group and “arylene group” have a carbon number of 6 to 60 unless otherwise stated, but is not limited thereto.
- an aryl group or an arylene group means an aromatic of a single ring or multiple rings, and includes an aromatic ring formed by neighboring substituents participating in a bond or a reaction.
- the aryl group may be a phenyl group, a biphenyl group, a fluorene group, a spirofluorene group.
- aryl or "ar” means a radical substituted with an aryl group.
- an arylalkyl group is an alkyl group substituted with an aryl group
- an arylalkenyl group is an alkenyl group substituted with an aryl group
- the radical substituted with an aryl group has the carbon number described herein.
- an arylalkoxy group means an alkoxy group substituted with an aryl group
- an alkoxylcarbonyl group means a carbonyl group substituted with an alkoxyl group
- an arylcarbonylalkenyl group means an alkenyl group substituted with an arylcarbonyl group.
- the arylcarbonyl group is a carbonyl group substituted with an aryl group.
- heteroalkyl means an alkyl including one or more heteroatoms unless otherwise indicated.
- heteroaryl group or “heteroarylene group” means an aryl group or arylene group having 2 to 60 carbon atoms, each containing one or more heteroatoms, unless otherwise specified. It may include at least one of a single ring and multiple rings, and may be formed by combining adjacent functional groups.
- heterocyclic group includes one or more heteroatoms, unless otherwise indicated, and has from 2 to 60 carbon atoms, and includes at least one of single and multiple rings, heteroaliphatic rings and hetero Aromatic rings. Adjacent functional groups may be formed in combination.
- heteroatom refers to N, O, S, P or Si unless otherwise stated.
- Heterocyclic groups may also include rings comprising SO 2 in place of the carbon forming the ring.
- a “heterocyclic group” includes the following compounds.
- aliphatic as used herein means an aliphatic hydrocarbon having 1 to 60 carbon atoms
- aliphatic ring means an aliphatic hydrocarbon ring having 3 to 60 carbon atoms.
- ring refers to a fused ring consisting of an aliphatic ring having 3 to 60 carbon atoms or an aromatic ring having 6 to 60 carbon atoms or a hetero ring having 2 to 60 carbon atoms or a combination thereof. Saturated or unsaturated rings.
- heterocompounds or heteroradicals other than the aforementioned heterocompounds include, but are not limited to, one or more heteroatoms.
- carbonyl used in the present invention is represented by -COR ', wherein R' is hydrogen, an alkyl group having 1 to 20 carbon atoms, an aryl group having 6 to 30 carbon atoms, and 3 to 30 carbon atoms. Cycloalkyl group, an alkenyl group having 2 to 20 carbon atoms, an alkynyl group having 2 to 20 carbon atoms, or a combination thereof.
- ether as used herein is represented by -RO-R ', wherein R or R' are each independently of each other hydrogen, an alkyl group having 1 to 20 carbon atoms, It is an aryl group, a C3-C30 cycloalkyl group, a C2-C20 alkenyl group, a C2-C20 alkynyl group, or a combination thereof.
- substituted in the term “substituted or unsubstituted” as used in the present invention is deuterium, halogen, amino group, nitrile group, nitro group, C 1 ⁇ C 20 alkyl group, C 1 ⁇ C 20 alkoxyl group, C 1 ⁇ C 20 alkylamine group, C 1 ⁇ C 20 alkylthiophene group, C 6 ⁇ C 20 arylthiophene group, C 2 ⁇ C 20 alkenyl group, C 2 ⁇ C 20 alkynyl, C 3 ⁇ C 20 cycloalkyl group, C 6 ⁇ C 20 aryl group, of a C 6 ⁇ C 20 substituted by deuterium aryl group, a C 8 ⁇ C 20 aryl alkenyl group, a silane group, a boron Group, germanium group, and C 2 ⁇ C 20 It is meant to be substituted with one or more substituents selected from the group consist
- the substituent R 1 when a is an integer of 0, the substituent R 1 is absent, when a is an integer of 1, one substituent R 1 is bonded to any one of carbons forming the benzene ring, and a is an integer of 2 or 3 are each bonded as follows, where R 1 may be the same or different from each other, and when a is an integer from 4 to 6, it is bonded to the carbon of the benzene ring in a similar manner, while the indication of hydrogen bonded to the carbon forming the benzene ring Is omitted.
- FIG. 1 is an exemplary view of an organic electric device according to an embodiment of the present invention.
- the organic electric device 100 includes a first electrode 120, a second electrode 180, a first electrode 110, and a second electrode 180 formed on a substrate 110.
- the first electrode 120 may be an anode (anode)
- the second electrode 180 may be a cathode (cathode)
- the first electrode may be a cathode and the second electrode may be an anode.
- the organic layer may include a hole injection layer 130, a hole transport layer 140, a light emitting layer 150, an electron transport layer 160, and an electron injection layer 170 on the first electrode 120 in sequence. At this time, the remaining layers except for the light emitting layer 150 may not be formed.
- the hole blocking layer, the electron blocking layer, the light emitting auxiliary layer 151, the buffer layer 141 may be further included, and the electron transport layer 160 may serve as the hole blocking layer.
- the organic electric device according to the present invention may further include a protective layer or a light efficiency improving layer (Capping layer) formed on one surface of the at least one surface of the first electrode and the second electrode opposite to the organic material layer.
- a protective layer or a light efficiency improving layer Capping layer
- the compound according to the present invention applied to the organic material layer of the hole injection layer 130, the hole transport layer 140, the electron transport layer 160, the electron injection layer 170, the host of the dopant or light efficiency improvement layer of the light emitting layer 150 It may be used as a material.
- the compound of the present invention may be used as the light emitting layer 150, hole transport layer 140 and / or light emitting auxiliary layer 151.
- a light emitting auxiliary layer between the hole transport layer and the light emitting layer, and according to each of the light emitting layers R, G, and B, It is time to develop different light emitting auxiliary layers. Meanwhile, in the case of the light emitting auxiliary layer, it is difficult to infer the characteristics of the organic material layer used even if a similar core is used, since the correlation between the hole transport layer and the light emitting layer (host) must be understood.
- a light emitting layer or an auxiliary light emitting layer using a compound represented by the formula (1) by optimizing the energy level (level) and T1 value between each organic material layer, the intrinsic properties (mobility, interface characteristics, etc.) of the organic material
- the life and efficiency of the electric device can be improved at the same time.
- the organic electroluminescent device may be manufactured using a PVD method.
- the anode 120 is formed by depositing a metal or a conductive metal oxide or an alloy thereof on a substrate, and the hole injection layer 130, the hole transport layer 140, the light emitting layer 150, and the electron transport layer are formed thereon.
- the organic material layer including the 160 and the electron injection layer 170 it can be prepared by depositing a material that can be used as the cathode 180 thereon.
- the organic material layer is a solution or solvent process (e.g., spin coating process, nozzle printing process, inkjet printing process, slot coating process, dip coating process, roll-to-roll process, doctor blading) using various polymer materials. It can be produced in fewer layers by methods such as ding process, screen printing process, or thermal transfer method. Since the organic material layer according to the present invention may be formed in various ways, the scope of the present invention is not limited by the forming method.
- the organic electric element according to the present invention may be a top emission type, a bottom emission type or a double-sided emission type depending on the material used.
- WOLED White Organic Light Emitting Device
- Various structures for white organic light emitting devices mainly used as backlight devices have been proposed and patented. Representatively, a side-by-side method in which R (Red), G (Green), and B (Blue) light emitting parts are mutually planarized, and a stacking method in which R, G, and B light emitting layers are stacked up and down. And a color conversion material (CCM) method using photo-luminescence of an inorganic phosphor by using electroluminescence by a blue (B) organic light emitting layer and light therefrom. May also be applied to these WOLEDs.
- CCM color conversion material
- the organic electroluminescent device according to the present invention may be one of an organic electroluminescent device (OLED), an organic solar cell, an organic photoconductor (OPC), an organic transistor (organic TFT), a monochromatic or white illumination device.
- OLED organic electroluminescent device
- OPC organic photoconductor
- organic TFT organic transistor
- Another embodiment of the present invention may include a display device including the organic electric element of the present invention described above, and an electronic device including a control unit for driving the display device.
- the electronic device may be a current or future wired or wireless communication terminal, and includes all electronic devices such as a mobile communication terminal such as a mobile phone, a PDA, an electronic dictionary, a PMP, a remote controller, a navigation device, a game machine, various TVs, and various computers.
- the compound according to one aspect of the present invention is represented by the following formula (1).
- R 1 to R 12 are i) hydrogen independently of each other; heavy hydrogen; Tritium; halogen; C 6 ⁇ C 60 Aryl group; C 2 ⁇ C 60 heterocyclic group containing at least one heteroatom of O, N, S, Si and P; C 1 ⁇ C 50 Alkyl group; C 2 ⁇ C 20 Alkenyl group; C 1 ⁇ C 30 Alkoxy group; Or a fluorenyl group and -LN (Ar 1 ) (Ar 2 ), or ii) adjacent groups combine with each other to form at least one ring.
- the group which does not form a ring is as defined in i).
- 'neighboring groups combine with each other to form at least one ring' means that R 1 and R 2 , R 2 and R 3 , R 3 and R 4 , R 5 and R 6 , R It means that 7 and R 8 , R 9 and R 10 , R 10 and R 11 and / or R 11 and R 12 combine with each other to form at least one ring compound.
- the scope of the present invention is not limited by what substituents and by what reaction the ring is formed.
- the ring is a known reaction (Heck reaction or Chem. Eur. J. 2009, 15, 742, Molecules. 2008, 13, 3236-3245, J. Am. Chem. Soc. 2008, 130, 472-480, Tetrahedron Letters, 1997, 38, 4761-4764, etc.).
- the ring formed by bonding of adjacent groups among R 1 to R 12 may not only be a monocyclic or polycyclic aromatic ring or a hetero ring including at least one hetero atom, but may also be a fused form of an aromatic ring and an aliphatic ring. have.
- neighboring groups of R 1 and R 4 may be bonded to each other to form an aromatic ring such as benzene, naphthalene, phenanthrene, and the like.
- a phenanthrene form may be formed together with the benzene ring of the parent nucleus to which they are bonded.
- adjacent groups of R 1 to R 12 may be bonded to each other to form a heterocycle such as thiophene, furan, pyridine, indole, quinoline, and the like, wherein the carbon number may be 2 to 60.
- a multi-ring may be a fused (fused) form, a plurality of rings may not be fused with each other, the fused form and the non-fused form may be a mixed ring.
- X and Y are independently of each other, NR ', S, O, CR'R “or SiR'R", where R' and R "are i) independently of each other, C 6 ⁇ C 60 Aryl group; Containing at least one heteroatom of O, N, S, Si, and P C 2 ⁇ C 60 Heterocyclic group of; Fluorenyl groups; C One ⁇ C 50 Alkyl group and -L-N (Ar One ) (Ar 2 Or ii) R 'and R "may combine with each other to form a Spiro compound with C or Si to which they are attached.
- L is a single bond; C 6 ⁇ C 60 arylene group; Fluorenylene groups; C 2 ⁇ C 60 heterocyclic group containing at least one heteroatom of O, N, S, Si and P; And a divalent aliphatic hydrocarbon group; wherein the “single bond” means a case where L is absent, so that R 1 to R 12 are —N (Ar 1 ) (Ar 2 ). it means.
- Ar 1 and Ar 2 are each independently a C 6 ⁇ C 60 aryl group; Fluorenyl groups; C 2 ⁇ C 60 heterocyclic group containing at least one heteroatom of O, N, S, Si and P; C 1 ⁇ C 50 Alkyl group; C 2 ⁇ C 20 Alkenyl group and C 1 ⁇ C 30 Alkoxy group is selected from the group consisting of.
- Ar One , Ar 2 , L, R One To R 12 Deuterated when the aryl group, fluorenyl group, heterocyclic group, alkyl group, alkenyl group, alkoxyl group, arylene group, fluorenylene group and aliphatic hydrocarbon group of R ′ and R ′′ are further substituted with one or more substituents; Halogen; silane group; siloxane group; boron group; germanium group; cyano group; nitro group; amine group; C One ⁇ C 20 Alkylthio groups; C One ⁇ C 20 An alkoxyl group; C One ⁇ C 20 An alkyl group; C 2 ⁇ C 20 Alkenyl group; C 2 ⁇ C 20 Alkynyl group of; C 6 ⁇ C 20 of Aryl group; Deuterated C 6 ⁇ C 20 Aryl group; Fluorenyl groups; C 2 ⁇ C 20 Heterocyclic group of; C 3 ⁇ C 20 Cycloalkyl group; C 7
- the compound represented by Formula 1 may be represented by one of the following formula.
- Ar 3 is an aryl group of C 6 ⁇ C 60 ; C 2 ⁇ C 20 Alkenyl group; C 2 -C 60 heterocyclic group containing at least one hetero atom of O, N, S, Si and P; C 1 ⁇ C 50 Alkyl group; And a fluorenyl group unsubstituted or substituted with a C 1 to C 20 alkyl group, Z 1 to Z 4 are each independently CR ′ or N, and R 1 to R of Formulas 2 and 3 above. 12 , Y and L and the R 'is the same as defined in the formula (1).
- the compound represented by Formula 1 to Formula 3 may be one of the following compounds.
- the present invention provides an organic electroluminescent device comprising a first electrode, a second electrode, and an organic material layer positioned between the first electrode and the second electrode, wherein the organic material layer is a compound represented by the formula (1)
- Formula 1 may be contained in at least one layer of the light emitting layer, the hole transport layer or the light emitting auxiliary layer of the organic material layer. That is, the compound represented by Formula 1 may be used as a material of the light emitting layer, the hole transport layer or the light emitting layer.
- an organic electroluminescence device including one of the compounds represented by Formula 2 or 3 is provided in an organic material layer, and more specifically, the present invention provides an organic electroluminescence device including a compound represented by the individual chemical formula in the organic material layer. do.
- Final compound according to the present invention is prepared by reacting Sub 1 and Sub 2 as shown in Scheme 1, but is not limited thereto.
- Sub 1 of Scheme 1 may be synthesized by the reaction paths of Schemes 2, 3, and 4, but is not limited thereto.
- Sub 1-1-1 (1 equivalent) and Sub 1-1-2 (1 equivalent) were added to methanol and stirred in a round bottom flask. Sodium methoxide was added to the solution and stirred at room temperature for 24 hours. After extraction with dichrolomethane and water, the organic layer was dried and concentrated, and the resulting organic material was silicagel column and recrystallized to obtain Sub 1-1-3.
- Sub 1-1-3 (1 equivalent) and iodine are added to dry benzene in a round bottom flask and UV-treated during the foaming of the solution with a UV lamp and monitored by TLC. After 7 hours, the solvent was removed under reduced pressure and recrystallized with ethanol to obtain Sub 1-1-4.
- Sub 1-1-4 (1 equivalent) and boron tribromide are stirred in Dichrolomethane at room temperature for 12 hours. Thereafter, the mixture was extracted with ether and water, and the organic layer was dried over MgSO 4 , concentrated, and the resulting organic substance was purified by silicagel column and recrystallized to obtain Sub 1-1-5.
- Sub 1-1-5 (1 equiv), Sub 1-1-6 (3 equiv) and NaHSO 3 (5 equiv) were added to distilled water and refluxed at 100- for 15 hours. After cooling, distilled water was added and the resulting solid was filtered under reduced pressure. The obtained solid was put into aqueous hydrochloric acid solution and heated to 100 degreeC. After extracting with methyl chloride for 1 hour and washing with distilled water and aqueous NaOH solution, the resulting organics were silicagel column and recrystallized to obtain Sub 1-1.
- Sub 1-1-1 (1 equivalent) and Sub 1-2-1 (1 equivalent) were added to methanol and stirred in a round bottom flask. Sodium methoxide was added to the solution and stirred at room temperature for 24 hours. After extraction with dichrolomethane and water, the organic layer was dried and concentrated, and the resulting organic material was silicagel column and recrystallized to obtain Sub 1-2-2.
- Sub 1-2-2 (1 equivalent) and iodine are added to dry benzene in a round-bottomed flask and UV-treated during the foaming of the solution with a UV lamp and monitored by TLC. After 7 hours, the solvent was removed under reduced pressure and recrystallized with ethanol to obtain Sub 1-2-3.
- Sub 1-2-3 (1 equiv) was dissolved in dioxane and 1-pyrrolidino-1-cyclohexene (1.1 equiv) was added to reflux for 18 hours. After adding water and heating for 2 hours, after work-up with ether, 5% HCl, 5% NaHCO 3 solution, the resulting organics were silicagel column and recrystallized to obtain Sub 1-2-4.
- Sub 1-2-4 was dissolved in 70 ml of a 10% methanesulfonic acid mixed solution with CHCl 3 and stirred at room temperature for 2 hours. The reaction was terminated with a bicarbonate solution and then worked up with methylene chloride, NaHCO 3 and water. The solvent was blown off, separated by column chromatography, dissolved in triglyme with 10% Pd / C, and refluxed for 16 hours. Subsequently, column chromatography with hexane gave Sub 1-2-5.
- Sub 1-1-1 (1 equivalent) and Sub 1-3-1 (1 equivalent) were added to methanol and stirred in a round bottom flask. Sodium methoxide was added to the solution and stirred at room temperature for 24 hours. After extraction with dichrolomethane and water, the organic layer was dried and concentrated, and the resulting organic material was silicagel column and recrystallized to obtain Sub 1-3-2.
- Sub 1-3-2 (1 equivalent) and iodine are added to dry benzene in a round-bottomed flask and UV-treated during the foaming of the solution with a UV lamp and monitored by TLC. After 7 hours, the solvent was removed under reduced pressure and recrystallized with ethanol to obtain Sub 1-3-3.
- Sub 1-3-3 (1 equiv), Sub 1-3-4 (1 equiv), Ph (PPh 3 ) and NaCO 3 were dissolved in anhydrous THF and a small amount of water and then refluxed for 24 hours. After the reaction was completed, the temperature of the reactant was cooled to room temperature, extracted with CH 2 Cl 2 , and washed with water. After removing a small amount of water with anhydrous MgSO 4 and filtered under reduced pressure, the product was concentrated by separation of the organic solvent was separated by column chromatography to give the desired Sub 1-3-5.
- Sub 1-3-5 was dissolved in trifluoromethanesulfonic acid solvent, and then stirred at room temperature for 48 hours. After the reaction was completed, the reaction was poured into a mixed solvent of water and pyridine and refluxed for 20 minutes. The temperature of the reaction was cooled to room temperature, extracted with CH 2 Cl 2 and wiped off. After removing a small amount of water with anhydrous MgSO 4 and filtered under reduced pressure, the organic solvent was concentrated and the resulting product was separated by column chromatography to give the desired Sub 1-3.
- Example 1 Red organic electroluminescent device (phosphorescent red host)
- An organic electroluminescent device was manufactured according to a conventional method using the compound of the present invention as a light emitting host material of the light emitting layer.
- N 1- (naphthalen-2-yl) -N 4 , N 4- bis (4- (naphthalen-2-yl (phenyl) amino) phenyl) -N 1- phenylbenzene-1,4-diamine hereinafter abbreviated as 2-TNATA
- 2-TNATA phenylbenzene-1,4-diamine
- NPD Til-N -phenylamino] biphenyl
- NPD N-phenylamino] biphenyl
- the dopant is a compound P-26 of the present invention as a host material and bis- (1-phenylisoquinolyl) iridium (III) acetylacetonate (hereinafter abbreviated as (piq) 2 Ir (acac)) on the hole transport layer.
- the light emitting layer was formed by doping at a weight ratio of 95: 5 and vacuum deposition to a thickness of 30 nm.
- BAlq (1,1'-bisphenyl) -4-oleito) bis (2-methyl-8-quinoline oleito) aluminum
- BAlq (2-methyl-8-quinoline oleito) aluminum
- a blocking layer was formed and tris (8-quinolinol) aluminum (hereinafter abbreviated as Alq 3 ) was vacuum deposited to a thickness of 40 nm on the hole blocking layer to form an electron transport layer.
- LiF which is a halogenated alkali metal
- LiF which is a halogenated alkali metal
- An organic electroluminescent device was manufactured according to the same method as Example 1 except for using the compounds P-27 to P-90 of the present invention shown in Table 6 instead of the compound P-26 as the host material of the emission layer. It was.
- An organic electroluminescent device was manufactured in the same manner as in Example 1, except that Comparative Compound 1 was used instead of Compound P-26 of the present invention as a host material of the emission layer.
- An organic electroluminescent device was manufactured in the same manner as in Example 1, except that Comparative Compound 2 was used instead of Compound P-26 of the present invention as a host material of the emission layer.
- An organic electroluminescent device was manufactured in the same manner as in Example 1, except that Comparative Compound 3 was used instead of Compound P-26 of the present invention as a host material of the emission layer.
- An organic electroluminescent device was manufactured in the same manner as in Example 1, except that Comparative Compound 4 was used instead of Compound P-26 of the present invention as a host material of the emission layer.
- Electroluminescence (EL) characteristics by PR-650 of photoresearch by applying a forward bias DC voltage to the organic electroluminescent devices prepared by Examples 1 to 65 and Comparative Examples 1 to 4 of the present invention The T90 lifetime was measured using a life-time measurement device manufactured by McScience Inc. at 300 cd / m 2 reference luminance. The measurement results are shown in Table 6 below.
- the organic electroluminescent device using the organic electroluminescent device material of the present invention can be used as a red light emitting layer material can significantly improve the high luminous efficiency, lifetime and color purity.
- the device to which the compound of the present invention, which is substituted with quinazoline shows higher efficiency and longer life You can see that.
- An organic electroluminescent device was manufactured according to a conventional method using the compound of the present invention as a light emitting host material of the light emitting layer.
- a hole injection layer was formed by vacuum depositing 2-TNATA with a thickness of 60 nm on an ITO layer (anode) formed on a glass substrate, and then a NPD was vacuum deposited on the hole injection layer with a thickness of 20 nm to form a hole transport layer.
- Ir (ppy) 3 a tris (2-phenylpyridine) -iridium
- a hole blocking layer was formed by vacuum depositing BAlq to a thickness of 10 nm on the light emitting layer
- an electron transport layer was formed by vacuum depositing Alq 3 to a thickness of 40 nm on the hole blocking layer.
- LiF which is a halogenated alkali metal
- LiF which is a halogenated alkali metal
- Example 66 The same as in Example 66 except for using the compounds P-2 to P-20 and P-106 to P-145 of the present invention shown in Table 7 as a host material for the light emitting layer.
- An organic electroluminescent device was manufactured by the method.
- An organic electroluminescent device was manufactured in the same manner as in Example 66, except that Comparative Compound 1 was used instead of Compound P-1 of the present invention as a host material of the emission layer.
- An organic electroluminescent device was manufactured in the same manner as in Example 66, except that Comparative Compound 2 was used instead of Compound P-1 of the present invention as a host material of the emission layer.
- An organic electroluminescent device was manufactured in the same manner as in Example 66, except that Comparative Compound 3 was used instead of Compound P-1 of the present invention as a host material of the emission layer.
- An organic electroluminescent device was manufactured in the same manner as in Example 66, except that Comparative Compound 4 was used instead of Compound P-1 of the present invention as a host material of the emission layer.
- the T90 lifetime was measured using a life-time measuring instrument manufactured by McScience Inc. at 300 cd / m 2 reference luminance. The measurement results are shown in Table 7 below.
- the organic electroluminescent device using the organic electroluminescent device material of the present invention can be used as a green light emitting layer material can significantly improve the high luminous efficiency, lifetime and color purity.
- Comparative Compound 2 Comparative Compound 3 and the compound of the present invention with similar structure to the compound of the present invention, it can be seen that the device using the compound of the present invention exhibits higher efficiency and higher lifetime.
- An organic electroluminescent device was manufactured according to a conventional method using the compound of the present invention as a light emitting auxiliary layer material.
- a hole injection layer was formed by vacuum depositing 2-TNATA with a thickness of 60 nm on an ITO layer (anode) formed on a glass substrate, and then a NPD was vacuum deposited on the hole injection layer with a thickness of 20 nm to form a hole transport layer.
- the compound P-21 of the present invention was vacuum-deposited to a thickness of 20 nm on the hole transport layer to form a light emitting auxiliary layer, and 4,4'-N, N'-dicarbazole-biphenyl (hereinafter CBP) was formed on the light emitting auxiliary layer.
- CBP 4,4'-N, N'-dicarbazole-biphenyl
- a host material and Ir (ppy) 3 as a dopant material at a weight ratio of 95: 5 to form a light emitting layer by vacuum deposition at a thickness of 30 nm.
- BAlq was vacuum-deposited to a thickness of 10 nm on the light emitting layer to form a hole blocking layer
- Alq 3 was vacuum-deposited to a thickness of 40 nm on the hole blocking layer to form an electron transport layer.
- an electron injection layer was formed by depositing LiF, which is a halogenated alkali metal, to a thickness of 0.2 nm on the electron transport layer, and then depositing Al to a thickness of 150 nm to form a cathode.
- An organic electroluminescent device was manufactured according to the same method as Example 126 except for using the compound P-22 to P-25 of the present invention shown in Table 8 below instead of the compound P-21 of the present invention as a light emitting auxiliary layer material. It was.
- An organic electroluminescent device was manufactured in the same manner as in Example 126, except that an emission auxiliary layer was not formed.
- An organic electroluminescent device was manufactured in the same manner as in Example 126, except that Comparative Compound 5 was used instead of Compound P-21 of the present invention as a light emitting auxiliary layer material.
- An organic electroluminescent device was manufactured in the same manner as in Example 126, except that Comparative Compound 6 was used instead of Compound P-21 of the present invention as a light-emitting auxiliary layer material.
- Electroluminescence (EL) characteristics by PR-650 of photoresearch by applying a forward bias DC voltage to the organic electroluminescent devices prepared in Examples 126 to 130 and Comparative Examples 9 to 11 of the present invention The T90 lifetime was measured using a life-time measuring instrument manufactured by McScience Inc. at 300 cd / m 2 reference luminance. The measurement results are shown in Table 8 below.
- An organic electroluminescent device was manufactured according to a conventional method using the compound of the present invention as a hole transport material.
- a hole injection layer is formed by vacuum depositing 2-TNATA with a thickness of 60 nm on an ITO layer (anode) formed on an organic substrate, and then vacuum depositing compound P-91 of the present invention on the hole injection layer with a thickness of 20 nm.
- a hole transport layer was formed.
- the light emitting layer was formed on the hole transport layer by doping at 90:10 weight ratio using CBP as a host material and Ir (ppy) 3 as a dopant material to form a light emitting layer by vacuum deposition at a thickness of 30 nm.
- BAlq was vacuum-deposited to a thickness of 10 nm on the light emitting layer to form a hole blocking layer
- Alq 3 was vacuum-deposited to a thickness of 40 nm on the hole blocking layer to form an electron transport layer.
- LiF which is a halogenated alkali metal
- Al was deposited to a thickness of 150 nm to form a cathode, thereby manufacturing an organic electroluminescent device.
- Example 131 The same method as Example 131 except for using the compounds P-92 to P-105 and P-146 to P-165 of the present invention shown in Table 9 below instead of the compound P-91 of the present invention as a hole transport layer material.
- An organic electroluminescent device was prepared.
- An organic electroluminescent device was manufactured in the same manner as in Example 131, except that Comparative Compound 7 was used instead of Compound P-91 of the present invention as a hole transport layer material.
- An organic electroluminescent device was manufactured in the same manner as in Example 131, except that Comparative Compound 5 was used instead of Compound P-91 of the present invention as a hole transport layer material.
- An organic electroluminescent device was manufactured in the same manner as in Example 131, except that Comparative Compound 6 was used instead of Compound P-91 of the present invention as a hole transport layer material.
- Electroluminescence (EL) characteristics by PR-650 of photoresearch by applying a forward bias DC voltage to the organic electroluminescent devices prepared in Examples 131 to 165 and Comparative Examples 12 to 14 of the present invention The T90 lifetime was measured using a life-time measuring instrument manufactured by McScience Inc. at 300 cd / m 2 reference luminance. The measurement results are shown in Table 9 below.
- the compounds of the present invention are used in other organic material layers of the organic electroluminescent device, for example, a hole injection layer, an electron injection layer, an electron transport layer, it is obvious that the same effect can be obtained.
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Abstract
Description
Claims (8)
- 하기 화학식으로 표시되는 화합물.<화학식 1>[상기 화학식 1에서,R1 내지 R12는 i) 서로 독립적으로 수소; 중수소; 삼중수소; 할로겐; C6~C60의 아릴기; O, N, S, Si 및 P 중 적어도 하나의 헤테로원자를 포함하는 C2~C60의 헤테로고리기; C1~C50의 알킬기; C2~C20의 알켄일기; C1~C30의 알콕시기; 플루오렌일기 및 -L-N(Ar1)(Ar2)로 이루어진 군에서 선택되거나, 또는 ii) 이웃한 기끼리 서로 결합하여 적어도 하나의 고리를 형성하며(이때, 고리를 형성하지 않는 기는 i)에서 정의된 것과 같음),X 및 Y는 서로 독립적으로, NR', S, O, CR'R" 또는 SiR'R"이고, 여기서 R' 및 R"은 i) 서로 독립적으로, C6~C60의 아릴기; O, N, S, Si 및 P 중 적어도 하나의 헤테로원자를 포함하는 C2~C60의 헤테로고리기; 플루오렌일기; C1~C50의 알킬기 및 -L-N(Ar1)(Ar2)로 이루어진 군에서 선택되거나, 또는 ii) R' 및 R"이 서로 결합하여 이들이 결합된 C 또는 Si와 함께 스파이로(Spiro) 화합물을 형성하며,상기 L은 단일결합; C6~C60의 아릴렌기; 플루오렌일렌기; O, N, S, Si 및 P 중 적어도 하나의 헤테로원자를 포함하는 C2~C60의 헤테로고리기; 및 2가의 지방족 탄화수소기;로 이루어진 군에서 선택되며,상기 Ar1과 Ar2는 서로 독립적으로, C6~C60의 아릴기; 플루오렌일기; O, N, S, Si 및 P 중 적어도 하나의 헤테로원자를 포함하는 C2~C60의 헤테로고리기; C1~C50의 알킬기; C2~C20의 알켄일기; 및 C1~C30의 알콕시기;로 이루어진 군에서 선택된다.여기서, 상기 Ar1, Ar2, L, R1 내지 R12, R' 및 R"의 상기 아릴기, 플루오렌일기, 헤테로고리기, 알킬기, 알켄일기, 알콕실기, 아릴렌기, 플루오렌일렌기, 지방족 탄화수소기가 하나 이상의 치환기로 더 치환되는 경우에는 각각 중수소; 할로겐; 실란기; 실록산기; 붕소기; 게르마늄기; 시아노기; 니트로기; 아민기; C1~C20의 알킬싸이오기; C1~C20의 알콕실기; C1~C20의 알킬기; C2~C20의 알켄일기; C2~C20의 알킨일기; C6~C20의 아릴기; 중수소로 치환된 C6~C20의 아릴기; 플루오렌일기; C2~C20의 헤테로고리기; C3~C20의 시클로알킬기; C7~C20의 아릴알킬기; 및 C8~C20의 아릴알켄일기;로 이루어진 군에서 선택된 하나 이상의 치환기로 더 치환된다]
- 제 1전극, 제 2전극, 및 상기 제 1전극과 제 2전극 사이에 위치하는 유기물층을 포함하는 유기전기소자에 있어서,상기 유기물층은 제 1항의 화합물을 함유하는 것을 특징으로 하는 유기전기소자.
- 제 4항에 있어서,용액공정(soluble process)에 의해 상기 화합물을 상기 유기물층으로 형성하는 것을 특징으로 하는 유기전기소자.
- 제 4항에 있어서,상기 화합물을 포함하는 유기물층은 발광층, 정공수송층 또는 발광보조층 중 적어도 하나인 것을 특징으로 하는 유기전기소자.
- 제 4항의 유기전기소자를 포함하는 디스플레이장치; 및상기 디스플레이장치를 구동하는 제어부;를 포함하는 전자장치.
- 제 7항에 있어서,상기 유기전기소자는 유기전기발광소자, 유기태양전지, 유기감광체, 유기트랜지스터 및 단색 또는 백색 조명용 소자 중 적어도 하나인 것을 특징으로 하는 전자장치.
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