CN107805264A - New organo-metallic compound and utilize its organic illuminating element - Google Patents

New organo-metallic compound and utilize its organic illuminating element Download PDF

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CN107805264A
CN107805264A CN201710804805.5A CN201710804805A CN107805264A CN 107805264 A CN107805264 A CN 107805264A CN 201710804805 A CN201710804805 A CN 201710804805A CN 107805264 A CN107805264 A CN 107805264A
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CN107805264B (en
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李征夏
李东勋
姜敏英
赵圣美
文程昱
郑珉祐
蔡美荣
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LG Chem Ltd
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    • C07F15/00Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table
    • C07F15/0006Compounds containing elements of Groups 8, 9, 10 or 18 of the Periodic Table compounds of the platinum group
    • C07F15/0033Iridium compounds
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    • C09K11/00Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/06Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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    • H10KORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00Organic light-emitting devices
    • H10K50/10OLEDs or polymer light-emitting diodes [PLED]
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    • H10K85/30Coordination compounds
    • H10K85/341Transition metal complexes, e.g. Ru(II)polypyridine complexes
    • H10K85/342Transition metal complexes, e.g. Ru(II)polypyridine complexes comprising iridium
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    • H10K85/00Organic materials used in the body or electrodes of devices covered by this subclass
    • H10K85/40Organosilicon compounds, e.g. TIPS pentacene
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Abstract

The present invention provides new organo-metallic compound and utilizes its organic illuminating element.

Description

New organo-metallic compound and utilize its organic illuminating element
Technical field
With the mutual reference of related application
The application is advocated based on the korean patent application on the 9th of September in 2016 No. 10-2016-0116563 and 2017 8 The interests of the priority of month korean patent application the 10-2017-0106727th on the 23rd, the text comprising these korean patent applications Full content as part of this specification disclosed in offering.
The present invention relates to new organo-metallic compound and the organic illuminating element for including it.
Background technology
In general, organic light emission phenomenon refers to the phenomenon for making electric energy be changed into luminous energy using organic substance.Using luminous The organic illuminating element of phenomenon has wide viewing angle, excellent contrast, fast response time, brightness, driving voltage and response speed Excellent is spent, so as to largely be studied.
Organic illuminating element generally has the organic matter layer comprising anode and negative electrode and between anode and negative electrode Structure.In order to improve the efficiency of organic illuminating element and stability, often by utilizing the multilayer that each different material is formed Structure forms above-mentioned organic matter layer, for example, can be by hole injection layer, hole transmission layer, luminescent layer, electron transfer layer, electronics The formation such as implanted layer.For the structure of such organic illuminating element, if applying voltage between electrodes, hole Organic matter layer is injected into from negative electrode from anode, electronics, exciton (exciton) is formed when institute's injected holes and electronics meet, The exciton will send light when transitting to ground state again.
It is lasting to require exploitation new material for the organic matter used in organic illuminating element as described above.
Prior art literature
Patent document
Patent document 1:Korean Patent Publication No. the 10-2000-0051826th
The content of the invention
The present invention relates to new organo-metallic compound and the organic illuminating element for including it.
The present invention provides the organo-metallic compound represented by following chemical formula 1.
[chemical formula 1]
In above-mentioned chemical formula 1,
M is iridium (Ir), platinum (Pt), osmium (Os), titanium (Ti), zirconium (Zr) or hafnium (Hf),
R1To R3And R11To R13It is each independently hydrogen, deuterium, halogen, cyano group, nitro, amino, substituted or unsubstituted C1-60Alkyl, C1-60Haloalkyl, substituted or unsubstituted C1-60Alkoxy, substituted or unsubstituted C1-60Halogenated alkoxy, take Generation or unsubstituted C3-60Cycloalkyl, substituted or unsubstituted C2-60Alkenyl, substituted or unsubstituted C6-60Aryl, substitution or not Substituted C6-60Aryloxy group or substituted or unsubstituted include more than the 1 heteroatomic C in N, O and S1-60Heterocycle Base,
A1 is 0 to 7 integer,
A2 and a3 is each independently 0 to 4 integer,
B is 1 to 8 integer,
A1+b is less than 8,
N is 1,2 or 3.
In addition, the present invention a kind of organic illuminating element is provided comprising:It is first electrode, opposed with above-mentioned first electrode And the second electrode that possesses and possess more than 1 layer of organic matter layer between above-mentioned first electrode and above-mentioned second electrode, The organo-metallic compound represented by 1 layer of above-mentioned chemical formula 1 contained above in above-mentioned organic matter layer.
Organo-metallic compound represented by above-mentioned chemical formula 1 can be as the material of the organic matter layer of organic illuminating element Use, efficiency can be improved in organic illuminating element, realize low driving voltage and/or improves life characteristic.Especially it is possible to It is used as phosphorescent dopants comprising the organo-metallic compound represented by above-mentioned chemical formula 1 in luminescent layer.
Brief description of the drawings
Fig. 1 shows the example of the organic illuminating element formed by substrate 1, anode 2, luminescent layer 3, negative electrode 4.
Fig. 2 is shown by substrate 1, anode 2, hole injection layer 5, hole transmission layer 6, luminescent layer 7, the and of electron transfer layer 8 The example for the organic illuminating element that negative electrode 4 is formed.
Symbol description
1:Substrate 2:Anode
3:Luminescent layer 4:Negative electrode
5:Hole injection layer 6:Hole transmission layer
7:Luminescent layer 8:Electron transfer layer
Embodiment
Hereinafter, in order to help to understand the present invention, illustrate in more detail.
The present invention provides the compound represented by a kind of above-mentioned chemical formula 1.
In this specification,Refer to the bonding being connected with other substituents.
In this specification, " substituted or unsubstituted " this term refers to, by selected from deuterium, halogen group, itrile group, nitro, Hydroxyl, carbonyl, ester group, imide, amino, oxidation phosphino-, alkoxy, aryloxy group, alkyl sulfenyl ( Alkyl thioxy), artyl sulfo (Aryl thioxy), alkyl sulfoxide base ( Alkyl sulfoxy), aryl sulfoxid es base (Aryl sulfoxy), silicyl, boryl, alkyl, ring Alkyl, alkenyl, aryl, aralkyl, arylalkenyl, alkylaryl, alkyl amine group, aralkyl amido, heteroaryl amido, arylamine More than 1 substituent substitution in base, aryl phosphino- or heteroatomic heterocyclic radical comprising more than 1 in N, O and S or It is unsubstituted, or the substituent being formed by connecting by the substituent of more than 2 in foregoing illustrative substituent substitutes or unsubstituted. Such as " substituent that the substituent of more than 2 is formed by connecting ", when being xenyl, xenyl can be interpreted to be taken by 1 phenyl The substituent that the aryl in generation or 2 phenyl are formed by connecting.
In this specification, the carbon number of carbonyl is not particularly limited, but preferably carbon number is 1 to 40.Specifically, It can be the compound of following structure, but be not limited to this.
In this specification, in ester group, the oxygen of ester group can by the straight chain of carbon number 1 to 25, side chain or cyclic alkyl or The aryl substitution of carbon number 6 to 25.Specifically, it can be the compound of following structural formula, but be not limited to this.
In this specification, the carbon number of imide is not particularly limited, and preferably carbon number is 1 to 25.It is specific and Speech, can be the compound of following structure, but not limited to this.
In this specification, silicyl specifically has trimethyl silyl, triethylsilyl, tertbutyldimethylsilyl chloride Silylation, vinyldimethylsilyl, propyl-dimethyl silicyl, triphenyl-silyl, diphenylsilyl group, Phenyl silyl groups etc., but it is not limited to this.
In this specification, boryl specifically has trimethyl boryl, triethyl group boryl, fert-butyidimethylsilyl boryl, triphen Base boryl, phenyl boryl etc., but not limited to this.
In this specification, as the example of halogen group, there are fluorine, chlorine, bromine or iodine.
In this specification, abovementioned alkyl can be straight or branched, and carbon number is not particularly limited, but preferably 1 to 40.According to an embodiment, the carbon number of abovementioned alkyl is 1 to 20.According to another embodiment, the carbon of abovementioned alkyl Atomicity is 1 to 10.According to another embodiment again, the carbon number of abovementioned alkyl is 1 to 6.As the concrete example of alkyl, Have methyl, ethyl, propyl group, n-propyl, isopropyl, butyl, normal-butyl, isobutyl group, the tert-butyl group, sec-butyl, 1- methyl-butvls, 1- Ethyl-butyls, amyl group, n-pentyl, isopentyl, neopentyl, tertiary pentyl, hexyl, n-hexyl, 1- methyl amyls, 2- methylpents Base, 4- methyl -2- amyl groups, 3,3- dimethylbutyls, 2- ethyl-butyls, heptyl, n-heptyl, 1- methylhexyls, cyclopentyl-methyl, Cyclohexyl methyl, octyl group, n-octyl, t-octyl, 1- methylheptyls, 2- ethylhexyls, 2- propylpentyls, n-nonyl, 2,2- bis- Methylheptyl, 1- Ethyl-propyls, 1,1- Dimethyl-propyls, isohesyl, 2- methyl amyls, 4- methylhexyls, 5- methylhexyls Deng, but it is not limited to this.
In this specification, above-mentioned alkenyl can be straight or branched, and carbon number is not particularly limited, but preferably 2 to 40.According to an embodiment, the carbon number of above-mentioned alkenyl is 2 to 20.According to another embodiment, the carbon of above-mentioned alkenyl Atomicity is 2 to 10.According to another embodiment again, the carbon number of above-mentioned alkenyl is 2 to 6.As concrete example, there is ethene Base, 1- acrylic, isopropenyl, 1- cyclobutenyls, 2- cyclobutenyls, 3- cyclobutenyls, 1- pentenyls, 2- pentenyls, 3- pentenyls, 3- Methyl isophthalic acid-cyclobutenyl, 1,3- butadienyls, pi-allyl, 1- phenylethylene -1- bases, 2- phenylethylene -1- bases, 2,2- diphenyl Ethene -1- bases, 2- phenyl -2- (naphthalene -1- bases) ethene -1- bases, 2,2- double (hexichol -1- bases) ethene -1- bases, Stilbene base, styrene Base etc., but it is not limited to this.
In this specification, cycloalkyl is not particularly limited, but the preferably cycloalkyl of carbon number 3 to 60, according to one Embodiment, the carbon number of above-mentioned cycloalkyl is 3 to 30.According to another embodiment, the carbon number of above-mentioned cycloalkyl For 3 to 20.According to another embodiment again, the carbon number of above-mentioned cycloalkyl is 3 to 6.Specifically, there are cyclopropyl, ring Butyl, cyclopenta, 3- methylcyclopentyls, 2,3- dimethylcyclopentyls, cyclohexyl, 3- methylcyclohexyls, 4- methylcyclohexyls, 2, 3- Dimethylcyclohexyls, 3,4,5- trimethylcyclohexyls, 4- tert-butylcyclohexyls, suberyl, cyclooctyl etc., but be not limited to This.
In this specification, aryl is not particularly limited, but the preferably aryl of carbon number 6 to 60, can be monocyclic virtue Base or polyaromatic.According to an embodiment, the carbon number of above-mentioned aryl is 6 to 30.According to another embodiment, on The carbon number for stating aryl is 6 to 20.Can be phenyl, xenyl, terphenyl as monocyclic aryl on above-mentioned aryl Deng, but it is not limited to this.As above-mentioned polyaromatic, can be naphthyl, anthryl, phenanthryl, pyrenyl, base,Base, fluorenyl etc., But it is not limited to this.
In this specification, fluorenyl can be substituted, and 2 substituents can be bonded to each other and form spiro structure.In above-mentioned fluorenes In the case that base is substituted, Ke Yiwei
Deng, but it is not limited to this.
In this specification, heterocyclic radical is to be used as heteroatomic heterocyclic radical, carbon atom comprising more than 1 in O, N, Si and S Number is not particularly limited, but preferably carbon number is 2 to 60.As the example of heterocyclic radical, have thienyl, furyl, pyrrole radicals, Imidazole radicals, thiazolyl,Oxazolyl,Di azoly, triazolyl, pyridine radicals, bipyridyl, pyrimidine radicals, triazine radical, triazolyl, a word used for translation Piperidinyl, pyridazinyl, pyrazinyl, quinolyl, quinazolyl, quinoxalinyl, phthalazinyl, Pyridopyrimidine base, pyrido-pyrazine base, Pyrazine and pyrazinyl, isoquinolyl, indyl, carbazyl, benzoOxazolyl, benzimidazolyl, benzothiazolyl, benzo click It is oxazolyl, benzothienyl, dibenzothiophenes base, benzofuranyl, phenanthroline (phenanthroline) base, thiazolyl, different Oxazolyl,Di azoly, thiadiazolyl group, benzothiazolyl, phenothiazinyl and dibenzofuran group etc., but it is not limited to this.
In this specification, the illustration phase of aryl and above-mentioned aryl in aralkyl, arylalkenyl, alkylaryl, arylamine group Together.In this specification, the alkyl in aralkyl, alkylaryl, alkyl amine group is identical with the illustration of abovementioned alkyl.This specification In, the heteroaryl in heteroaryl amine can be applicable the explanation related to above-mentioned heterocyclic radical.In this specification, the alkenyl in arylalkenyl It is identical with the illustration of above-mentioned alkenyl.In this specification, on arlydene, in addition to it is divalent group, can be applicable with it is above-mentioned The related explanation of aryl.In this specification, on heteroarylidene, in addition to it is divalent group, it can be applicable and above-mentioned heterocycle The related explanation of base.In this specification, on hydrocarbon ring, except its not for 1 valency group and 2 substituents with reference to being formed in addition to, The explanation related to above-mentioned aryl or cycloalkyl can be applicable.In this specification, on heterocycle, except it is not 1 valency group and 2 Individual substituent with reference to and formed beyond, the explanation related to above-mentioned heterocyclic radical can be applicable.
On the other hand, in above-mentioned chemical formula 1, M can be iridium (Ir).
In above-mentioned chemical formula 1, R1To R3Can be hydrogen, deuterium, halogen, cyano group, nitro, amino, substitution or not independently of one another Substituted C1-10Alkyl or substituted or unsubstituted C6-10Aryl.
For example, R1To R3Can be hydrogen, deuterium, halogen, cyano group, nitro, amino, methyl, ethyl, propyl group, just independently of one another Propyl group, isopropyl, butyl, normal-butyl, isobutyl group, the tert-butyl group, sec-butyl, phenyl, xenyl, terphenyl or naphthyl.
Specifically, such as R1Can be hydrogen.
Specifically, such as R2And R3Can be hydrogen, methyl, ethyl or phenyl independently of one another.
In above-mentioned chemical formula 1, a1 to a3 can be 0,1,2 or 3 independently of one another.For example, a1 to a3 independently of one another may be used Think 0 or 1.
In above-mentioned chemical formula 1, R11To R13Can be substituted or unsubstituted C independently of one another1-10Alkyl.
For example, R11To R13Independently of one another can be hydrogen, deuterium, halogen, cyano group, nitro, amino, methyl, ethyl, propyl group, N-propyl, isopropyl, butyl, normal-butyl, isobutyl group, the tert-butyl group or sec-butyl.
Specifically, such as R11To R13It can be methyl.
In above-mentioned chemical formula 1, b can be 1,2 or 3.For example, b can be 1.
Now, a1 represents R1Number, when a1 be more than 2 when, the R of more than 21It can be same to each other or different to each other.With reference to above-mentioned The structure of explanation and chemical formula 1 for a1, then it is appreciated that the explanation for a2 and a3.
In addition, b represents SiR11R12R13Number, when b be more than 2 when, the SiR of more than 211R12R13Can it is mutually the same or It is different.
On the other hand, above-mentioned organo-metallic compound can be selected from following chemical formula 1-1 into the group represented by 1-8 It is any:
Above-mentioned chemical formula 1-1 into 1-8,
R1To R3And R11To R13, a1 to a3 and n it is identical with the definition in above-mentioned chemical formula 1.
For example, above-mentioned organo-metallic compound can be selected from following compounds.
Organo-metallic compound represented by above-mentioned chemical formula 1 includes the benzoquinoline with more than one silicyl and made For part, it is improved using the life characteristic of the organic illuminating element of the organo-metallic compound and the long-life can be shown.
Now, the organo-metallic compound represented by above-mentioned chemical formula 1 for example can be such by following reaction equations 1 to 3 Ligand exchange reaction manufacture, but be not limited to this.Above-mentioned manufacture method can be more specific in Production Example described later.
[reaction equation 1]
[reaction equation 2]
[reaction equation 3]
Above-mentioned reaction can be implemented in polar solvent, specifically, can be real in the alcohol series solvents such as methanol, ethanol Apply.
With reference to the structure of above-mentioned reaction equation 1 to 3 and chemical formula 1, initial substance is substituted as, is wanted so as to manufacture Organo-metallic compound represented by the above-mentioned chemical formula 1 of manufacture.
In addition, the present invention provides the organic illuminating element for including the organo-metallic compound represented by above-mentioned chemical formula 1.Example Such as, the present invention provides following organic illuminating element, and the organic illuminating element includes:First electrode and above-mentioned first electrode pair The second electrode putting and possess and possesses more than 1 layer of organic matter between above-mentioned first electrode and above-mentioned second electrode Layer, the organo-metallic compound represented by 1 layer of above-mentioned chemical formula 1 contained above in above-mentioned organic matter layer.
In addition, above-mentioned organic matter layer can include luminescent layer, above-mentioned luminescent layer can be included represented by above-mentioned chemical formula 1 Organo-metallic compound.In above-mentioned luminescent layer, the organo-metallic compound represented by above-mentioned chemical formula 1 can play dopant work With.
Specifically, the phosphorescent dopants as above-mentioned luminescent layer, organic gold represented by above-mentioned chemical formula 1 can be included Belong to compound.
Now, above-mentioned luminescent layer can be further comprising known main body.Specifically, in above-mentioned luminescent layer, above-mentioned master The weight ratio of body and the organo-metallic compound represented by above-mentioned chemical formula 1 can be 99:1 to 80:20, but it is not limited to this.
The organic matter layer of organic illuminating element of the present invention can be formed by single layer structure, can also by be laminated with 2 layers with The sandwich construction of upper organic matter layer is formed.For example, the organic illuminating element of the present invention can have following structure:Except luminescent layer In addition also comprising the hole injection layer and hole transmission layer and above-mentioned luminescent layer between above-mentioned first electrode and above-mentioned luminescent layer Electron transfer layer and electron injecting layer between above-mentioned second electrode is as organic matter layer.But the knot of organic illuminating element Structure is not limited to this, can include the organic layer of smaller amounts or more quantity.
On the other hand, according to the organic illuminating element of the present invention can be sequentially laminated with substrate anode, more than 1 layer Organic matter layer and negative electrode structure (standard type (normal type)) organic illuminating element.In addition, having according to the present invention Machine light-emitting component can be that the reverse structure that negative electrode, more than 1 layer of organic matter layer and anode are sequentially laminated with substrate (is inverted Type (inverted type)) organic illuminating element.For example, the organic illuminating element according to an embodiment of the invention Structure be shown in Fig. 1 and 2.
Fig. 1 shows the example of the organic illuminating element formed by substrate 1, anode 2, luminescent layer 3, negative electrode 4.Such knot The organo-metallic compound represented by above-mentioned chemical formula 1 can be included in structure, in above-mentioned luminescent layer.
Fig. 2 is shown by substrate 1, anode 2, hole injection layer 5, hole transmission layer 6, luminescent layer 7, the and of electron transfer layer 8 The example for the organic illuminating element that negative electrode 4 is formed.In such structure, above-mentioned hole injection layer, hole transmission layer, luminescent layer and More than the 1 layer organo-metallic compound that can be included represented by above-mentioned chemical formula 1 in electron transfer layer.Preferably, luminescent layer In can include above-mentioned chemical formula 1 represented by organo-metallic compound.
According to the organic illuminating element of the present invention except the above-mentioned institute of chemical formula 1 contained above of 1 layer in above-mentioned organic matter layer Beyond the organo-metallic compound of expression, it can be manufactured using material known in the art and method.It is in addition, above-mentioned In the case that organic illuminating element includes multiple organic matter layers, above-mentioned organic matter layer can be by same substance or different material shape Into.
For example, can be by stacking gradually first electrode, organic matter on substrate according to the organic illuminating element of the present invention Layer and second electrode and manufacture.At this point it is possible to manufacture as follows:Utilize sputtering method (sputtering) or electron-beam vapor deposition method (e- Beam evaporation) etc PVD (physical vapor deposition method, physical Vapor Deposition), steamed on substrate Plate metal or conductive metal oxide or their alloy and form anode, formed on the anode and noted comprising hole Enter the organic matter layer of layer, hole transmission layer, luminescent layer and electron transfer layer, then evaporation can be used as negative electrode on the organic matter layer Material.In addition to such method, can also on substrate successively evaporation cathode material, organic matter layer, anode material come Manufacture organic illuminating element.
In addition, the compound represented by above-mentioned chemical formula 1, when manufacturing organic illuminating element, can not only be utilized Vacuum vapour deposition, organic matter layer can also be formed as using solution coating method.Wherein, so-called solution coating method refers to, spin coating Method, dip coating, knife coating, ink jet printing method, silk screen print method, spray-on process, rolling method etc., but it is not limited only to this.
In addition to method as described above, can also on substrate evaporation cathode material, organic matter layer, anode material successively And manufacture organic illuminating element (WO 2003/012890).But manufacture method is not limited to this.
For example, above-mentioned first electrode is anode, above-mentioned second electrode is negative electrode;Or above-mentioned first electrode is negative electrode, on It is anode to state second electrode.
As above-mentioned anode material, generally for enabling hole successfully to be injected to organic matter layer, preferably work function Big material.As the concrete example of above-mentioned anode material, there are the metals such as vanadium, chromium, copper, zinc, gold or their alloy;Zinc oxide, The metal oxides such as indium oxide, tin indium oxide (ITO), indium zinc oxide (IZO);ZnO:Al or SnO2:The metals such as Sb and oxide Combination;Poly- (3 methyl thiophene), poly- [3,4- (ethylidene -1,2- dioxies) thiophene] (PEDOT), polypyrrole and polyaniline etc. are led Electrical macromolecule etc., but it is not limited only to this.
As above-mentioned cathode substance, generally for making electronics easily be injected to organic matter layer, preferably work function is small Material.As the concrete example of above-mentioned cathode substance, there are the metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminium, silver, tin and lead Or their alloy;LiF/Al or LiO2Sandwich construction material such as/Al etc., but it is not limited only to this.
Above-mentioned hole injection layer is the layer in the hole that injection carrys out self-electrode, is preferably followingization as hole injecting material Compound:Possess the ability of transporting holes, there is the hole injection effect from anode, for the excellent of luminescent layer or luminescent material Hole injection effect, prevent in luminescent layer caused exciton to be migrated to electron injecting layer or electron injection material, and thin Film Forming ability is excellent.It is preferred that HOMO (highest occupied molecular orbital(HOMO), the highest occupied of hole injecting material Molecular orbital) between the work function of anode material and the HOMO of surrounding organic matter layer.As hole infusion The concrete example of matter, there are metalloporphyrin (porphyrin), Oligopoly thiophene, aryl amine system organic matter, the azepine benzophenanthrene system of six nitrile six to have Machine thing, quinacridone (quinacridone) are that organic matter, (perylene) are organic matter, anthraquinone and polyaniline and polythiophene It is electroconductive polymer etc., but is not limited only to this.
Above-mentioned hole transmission layer is to receive the hole from hole injection layer and by the layer of hole transport to luminescent layer, as Hole transporting material, it is that can receive the hole from anode or hole injection layer and transfer them to the material of luminescent layer, it is right The material that the mobility in hole is big is suitable.As concrete example, there are aryl amine system organic matter, electroconductive polymer, Yi Jitong When block copolymer of conjugate moiety and non-conjugated portion etc. be present, but be not limited only to this.
It is that can receive hole and electronics respectively from hole transmission layer and electron transfer layer and make as above-mentioned luminescent substance They with reference to and send the material of the light of visible region, preferably for the high material of the quantum efficiency of fluorescence or phosphorescence.Make For concrete example, there is 8-hydroxyquinoline aluminum complex (Alq3);Carbazole based compound;Two polystyrene-based (dimerized Styryl) compound;BAlq;10- hydroxy benzo quinoline metal compounds;BenzoAzoles, benzothiazole and benzimidazole system Compound;Poly- (to phenylene vinylidene) (PPV) is macromolecule;Loop coil (spiro) compound;Polyfluorene, rubrene etc., but not It is only limitted to this.
As described above, above-mentioned luminescent layer can include material of main part and dopant material.Material of main part has aromatic fused ring Derivative or nitrogen-containing heterocgcies etc..Specifically, as aromatic fused ring derivative, anthracene derivant, pyrene derivatives, naphthalene spread out Biology, pentacene derivative, phenanthrene compound, fluoranthene compound etc., as nitrogen-containing heterocgcies, there are carbazole derivates, dibenzo Furan derivatives, ladder type furan compoundPyrimidine derivatives etc., but it is not limited to this.
As dopant material, in addition to the organo-metallic compound represented by above-mentioned chemical formula 1, can further wrap Containing aromatic amine derivative, styrylamine compounds, boron complexes, fluoranthene compound, metal complex etc..Specifically, As aromatic amine derivative, it is the aromatic fused ring derivative with substituted or unsubstituted arylamino, has with aryl The pyrene of amino, anthracene,Two indeno pyrenes (Periflanthene) etc., it is to substitute or do not taking as styrylamine compounds Substitution has the compound of at least one aryl vinyl on the arylamine in generation, by selected from aryl, silicyl, alkyl, cycloalkyl and 1 in arylamino or more than 2 substituent substitutions or unsubstituted.Specifically, there are styryl amine, styryl two Amine, styryl triamine, styryl tetramine etc., but it is not limited to this.In addition, as metal complex, there are complex of iridium, platinum Complex etc., but it is not limited to this.
Above-mentioned electron transfer layer is to receive electronics and by the layer of electric transmission to luminescent layer from electron injecting layer, as electronics Transport materials, it is that can receive electronics well from negative electrode and transfer them to the material of luminescent layer, it is big to the mobility of electronics Material be suitable.As concrete example, there are the Al complexs of 8-hydroxyquinoline, comprising Alq3Complex, organic free radical Compound, flavonol-metal complex etc., but it is not limited only to this.Electron transfer layer can be as used in conventional art As be used together with the cathode substance of any desired.Particularly, the example of suitable cathode substance is with low work function And along with aluminium lamination or the common material of silver layer.Specially caesium, barium, calcium, ytterbium and samarium, in the case of each material, along with aluminium Layer or silver layer.
Above-mentioned electron injecting layer be injection come self-electrode electronics layer, preferably following compound:With transmission electronics Ability, have the electron injection effect from negative electrode, the excellent electron injection effect for luminescent layer or luminescent material, prevent Only caused exciton migrates to hole injection layer in luminescent layer, and film Forming ability is excellent.Specifically, have Fluorenone, Anthraquinone bismethane (Anthraquinodimethane), diphenoquinone, thiopyrandioxide,Azoles,Diazole, triazole, imidazoles, Tetrabasic carboxylic acid, fluorenylidene-methane, anthrone etc. and their derivative, metal complex and nitrogenous 5 membered ring derivatives etc., but simultaneously Not limited to this.
As above-mentioned metal complex, have 8-hydroxyquinoline lithium, double (8-hydroxyquinoline) zinc, double (8-hydroxyquinoline) copper, It is double (8-hydroxyquinoline) manganese, three (8-hydroxyquinoline) aluminium, three (2- methyl -8-hydroxyquinoline) aluminium, three (8-hydroxyquinoline) galliums, double (10- hydroxy benzos [h] quinoline) beryllium, double (10- hydroxy benzos [h] quinoline) zinc, double (2- methyl -8- quinoline) gallium chlorides, double (2- Methyl -8- quinoline) (orthoresol) gallium, double (2- methyl -8- quinoline) (1- naphthols) aluminium, double (2- methyl -8- quinoline) (beta naphthals) Gallium etc., but it is not limited to this.
According to the present invention organic illuminating element according to used in material, can be top emission type, bottom emission type Or bidirectional luminescence type.
In addition, can also be in organic solar batteries or organic transistor comprising above-mentioned in addition to organic illuminating element Organo-metallic compound represented by chemical formula 1.
Organo-metallic compound represented by above-mentioned chemical formula 1 is illustrated in the examples below and comprising the organic of its The manufacture of light-emitting component.But following embodiments are used to illustrate the present invention, the scope of the present invention not limited to this.
[Production Example]
Production Example 1-1:The compound synthesis of intermediate A 1 and B1
(1) intermediate 1-1a manufacture
By 3- bromine Benzoquinoline quinoline (54.0g, 0.21mol), 4,4,5, the 5- tetramethyls-boron of [1,3,2]-dioxane penta Alkane (58.5g, 0.23mol), Pd (dppf) Cl2(1.53g, 2.09mmol), KOAc (61.6g, 0.62mol) are put into twoAlkane (Dioxane) in 830mL, stir 8 hours under reflux conditions.Temperature is reduced to normal temperature, and solvent under reduced pressure is concentrated.Should Concentrate is dissolved completely in CHCl3Afterwards, it is washed with water, the solution decompression dissolved with product is concentrated, refined using column chromatography. So as to obtain intermediate 1-1a (52.8g, yield 82%, MS:[M+H]+=306).
(2) manufacture of intermediate A 1
Under nitrogen atmosphere, by intermediate 1-1a (52.8g, 173mmol) and trim,ethylchlorosilane (chlorotrimethylsilane) after (20.6g, 190mmol) is dissolved in tetrahydrofuran 600mL, addition 2M potassium carbonate is water-soluble Liquid (250ml), tetrakis triphenylphosphine palladium (3.8g, 3.46mmol) is put into, then carries out the stirring of 14 hours under reflux conditions. React after terminating, reduction temperature, after separate aqueous layer, remove the solvent of organic layer.Use CHCl3After dissolving, it is washed with water, puts Enter magnesium sulfate and Emathlite, filter and be concentrated under reduced pressure after stirring.Afterwards, under the conditions of hexane, by pillar layer separation, Manufacture compound A1 (35.0g, yield 80%, MS:[M+H]+=252).
(3) intermediate 1-1b manufacture
In round-bottomed flask, iridium chloride (12g, 40.2mmol) and compound A1 (25.3g, 0.10mmol) are put into 2- second In ethoxy-ethanol 1000ml and distilled water 330ml, and heating stirring 18 hours.Temperature is reduced to normal temperature, filtered, with ethanol 3L Washing, so as to manufacture solid chemical compound 1-1b (30.7g, yield 52%).
(4) manufacture of intermediate B 1
By addition have intermediate 1-1b (30.7g, 0.021mol) and dichloromethane 800ml AgOTf (14.6g, 0.057mol) it is put into and is dissolved in methanol 400ml, then carries out stirring at normal temperature in the state of light is shielded.After 24 hours, filtering The solvent in filtrate is removed afterwards, carries out toluene precipitation, not addition manufactures compound B-11 (yield 91%) refinedly.
Production Example 1-2:The compound synthesis of intermediate A 2 and B2
(1) intermediate 1-1c manufacture
Instead of 3- bromine Benzoquinoline quinoline using 6- bromine Benzoquinoline quinoline (50.0g), in addition, using with manufacture Mesosome 1-1a method identical method, manufacture above-claimed cpd 1-1c (47.3g, yield 80%, MS:[M+H]+=306).
(2) manufacture of intermediate A 2
Intermediate 1-1c is used instead of intermediate 1-1a, it is in addition, identical using the method with manufacturing intermediate A 1 Method, manufacture above-mentioned intermediate A 2 (30.1g, yield 77%, MS:[M+H]+=252).
(3) intermediate 1-1d manufacture
Intermediate A 2 is used instead of intermediate A 1, in addition, utilizes the method identical with manufacturing intermediate 1-1b Method, manufacture above-mentioned intermediate 1-1d (28.8g, yield 49%).
(4) manufacture of intermediate B 2
Intermediate 1-1d is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate B 2 (yield 90%).
Production Example 1-3:The compound synthesis of intermediate A 3 and B3
(1) intermediate 1-1e manufacture
Instead of 3- bromine Benzoquinoline quinoline using 7- bromine Benzoquinoline quinoline (50.0g), in addition, using with manufacture Mesosome 1-1a method identical method, manufacture above-claimed cpd 1-1c (46.5g, yield 79%, MS:[M+H]+=306).
(2) manufacture of intermediate A 3
Intermediate 1-1e is used instead of intermediate 1-1a, it is in addition, identical using the method with manufacturing intermediate A 1 Method, manufacture above-mentioned intermediate A 3 (29.5g, yield 77%, MS:[M+H]+=252).
(3) intermediate 1-1f manufacture
Intermediate A 3 is used instead of intermediate A 1, utilizes the method identical method with manufacturing intermediate 1-1b, manufacture Above-mentioned intermediate 1-1f (26.1g, yield 48%).
(4) manufacture of intermediate B 3
Intermediate 1-1f is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate B 3 (yield 92%).
Production Example 1-4:The compound synthesis of intermediate A 4 and B4
(1) intermediate 1-1g manufacture
Instead of 3- bromine Benzoquinoline quinoline using 8- bromine Benzoquinoline quinoline (50.0g), in addition, using with manufacture Mesosome 1-1a method identical method, manufacture above-claimed cpd 1-1g (47.1g, yield 80%, MS:[M+H]+=306).
(2) manufacture of intermediate A 4
Intermediate 1-1g is used instead of intermediate 1-1a, it is in addition, identical using the method with manufacturing intermediate A 1 Method, manufacture above-mentioned intermediate A 4 (30.3g, yield 78%, MS:[M+H]+=252).
(3) intermediate 1-1h manufacture
Intermediate A 3 is used instead of intermediate A 1, in addition, utilizes the method identical with manufacturing intermediate 1-1b Method, manufacture above-mentioned intermediate 1-1h (30.2g, yield 46%).
(4) manufacture of intermediate B 4
Intermediate 1-1h is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate B 4 (yield 91%).
Production Example 2
Production Example 2-1:Intermediate D1 compound synthesis
(1) intermediate 2-1b manufacture
Instead of intermediate A 1 using 2- phenylpyridines (compound C1), in addition, using with manufacturing intermediate 1-1b Method identical method, manufacture above-mentioned intermediate 2-1b (20.1g, yield 50%).
(2) intermediate D1 manufacture
Intermediate 2-1b is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate D1 (14.2g).
Production Example 2-2:Intermediate C2 and D2 compound synthesis
(1) intermediate 3-1a manufacture
Under nitrogen atmosphere, by 2,4- dibromo pyridines (35.0g, 0.15mol) and phenylboric acid (phenylboronic Acid after) (20.20g, 0.16mol) is dissolved in tetrahydrofuran 300mL, 1.5M wet chemicals (150mL) is added, are put into four (triphenylphosphine) palladium (3.44g, 2.98mmol), then heating stirring 11 hours.Temperature is reduced to normal temperature, by water layer separation simultaneously Remove, be concentrated under reduced pressure after being dried with anhydrous magnesium sulfate, recrystallized, dried using column chromatography, so as to manufacture above-mentioned intermediate 3-1a (29.1g, yield 84%, MS:[M+H]+=233).
(2) intermediate C2 manufacture
Intermediate C2 is used instead of 2,4- dibromo pyridines, in addition, utilizes the method phase with manufacturing intermediate 3-1a Same method, manufacture above-claimed cpd C2 (23.8g, yield 83%, MS:[M+H]+=232).
(3) intermediate 3-1b manufacture
Instead of intermediate A 1 using intermediate C2 (15.8g), in addition, the method with manufacturing intermediate 1-1b is utilized Identical method, manufacture above-mentioned intermediate 3-1b (19.1g, yield 55%).
(4) intermediate D2 manufacture
Intermediate 3-1b is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate D2 (11.1g).
Production Example 2-3:Intermediate C3 and D3 compound synthesis
(1) intermediate C3 manufacture
The bromo- 4- picolines of 2- are used instead of 2,4- dibromo pyridines, in addition, using with manufacture intermediate 3-1a's Method identical method, manufacture above-claimed cpd C3 (51.0g, yield 86%, MS:[M+H]+=170).
(2) intermediate 4-1b manufacture
Instead of intermediate A 1 using intermediate C3 (26.4g), in addition, the method with manufacturing intermediate 1-1b is utilized Identical method, manufacture above-mentioned intermediate 4-1b (32.1g, yield 50%).
(3) intermediate D3 manufacture
Intermediate 4-1b is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate D3 (20.0g).
Production Example 2-4:Intermediate C4 and D4 compound synthesis
(1) intermediate 4-1a manufacture
2,5- dibromo pyridines are used instead of 2,4- dibromo pyridines, in addition, utilize the side with manufacturing intermediate 3-1a Method identical method, manufacture above-mentioned intermediate 4-1a (30.1g, yield 87%, MS:[M+H]+=234).
(2) intermediate C4 manufacture
Intermediate 4-1a is used instead of 2,4- dibromo pyridines, in addition, utilizes the method with manufacturing intermediate 3-1a Identical method, manufacture above-claimed cpd C4 (24.9g, yield 83%, MS:[M+H]+=232).
(2) intermediate 5-1b manufacture
Instead of intermediate A 1 using intermediate C4 (15.0g), in addition, the method with manufacturing intermediate 1-1b is utilized Identical method, manufacture above-mentioned intermediate 5-1b (17.8g, yield 49%).
(4) intermediate D4 manufacture
Intermediate 5-1b is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate D4 (10.3g).
Production Example 2-5:Intermediate C5 and D5 compound synthesis
(1) intermediate 5-1a manufacture
The bromo- 4- picolines of 2,5- bis- are used instead of 2,4- dibromo pyridines, in addition, using with manufacturing intermediate 3- 1a method identical method, manufacture above-mentioned intermediate 5-1a (30.4g, yield 88%, MS:[M+H]+=248).
(2) intermediate C5 manufacture
Intermediate 5-1a is used instead of 2,4- dibromo pyridines, in addition, utilizes the method with manufacturing intermediate 3-1a Identical method, manufacture above-claimed cpd C5 (24.2g, yield 81%, MS:[M+H]+=246).
(3) intermediate 6-1b manufacture
Instead of intermediate A 1 using intermediate C5 (15.0g), in addition, the method with manufacturing intermediate 1-1b is utilized Identical method, manufacture above-mentioned intermediate 6-1b (16.5g, yield 48%).
(4) intermediate D5 manufacture
Intermediate 6-1b is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate D5 (9.8g).
Production Example 2-6:Intermediate C6 and D6 compound synthesis
(1) intermediate C6 manufacture
Instead of 2,4- dibromo pyridines and phenylboric acid using 2- bromopyridines and [1,1'- biphenyl] -4- ylboronic acids, except this it Outside, the method identical method with manufacturing intermediate 3-1a, manufacture above-claimed cpd C6 (36.2g, yield 82%, MS are utilized:[M +H]+=232).
(2) intermediate 7-1b manufacture
Instead of intermediate A 1 using intermediate C6 (15.5g), the method identical side with manufacturing intermediate 1-1b is utilized Method, manufacture above-mentioned intermediate 7-1b (19.0g, yield 51%).
(3) intermediate D6 manufacture
Intermediate 7-1b is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate D6 (11.2g).
Production Example 2-7:Intermediate C7 and D7 compound synthesis
(1) intermediate C7 manufacture
Instead of 2,4- dibromo pyridines and phenylboric acid using 2- bromopyridines and [1,1'- biphenyl] -3- ylboronic acids, except this it Outside, the method identical method with manufacturing intermediate 3-1a, manufacture above-claimed cpd C7 (37.5g, yield 85%, MS are utilized:[M +H]+=232).
(2) intermediate 8-1b manufacture
Instead of intermediate A 1 using intermediate C7 (14.6g), in addition, the method with manufacturing intermediate 1-1b is utilized Identical method, manufacture above-mentioned intermediate 8-1b (18.4g, yield 53%).
(3) intermediate D7 manufacture
Intermediate 8-1b is used instead of intermediate 1-1b, it is in addition, identical using the method with manufacturing intermediate B 1 Method, manufacture above-mentioned intermediate D7 (10.2g).
Production Example 3-1:The compound synthesis of compound 1
Under nitrogen atmosphere, compound B-11 (8.5g, 9.40mmol) and compound C1 (3.6g, 23.5mmol), 55ml are put into MeOH, 55ml EtOH, stirred 48 hours at 90 DEG C of reaction temperature.After reaction terminates, filtering, in ethyl acetate:Hexane =1:Pass through pillar layer separation, manufacture compound 1 (yield 41%) under the conditions of 6.
Production Example 3-2:The compound synthesis of compound 2
Intermediate C5 is used instead of intermediate C1, in addition, utilizes the method identical side with manufacturing compound 1 Method, manufacture above-claimed cpd 2 (yield 39%).
Production Example 3-3:The compound synthesis of compound 3
Intermediate C7 is used instead of intermediate C1, in addition, utilizes the method identical side with manufacturing compound 1 Method, manufacture above-claimed cpd 3 (yield 42%).
Production Example 3-4:The compound synthesis of compound 4
Instead of intermediate B 1 and intermediate C1 use intermediate B 2 and intermediate C2, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 4 (yield 37%).
Production Example 3-5:The compound synthesis of compound 5
Instead of intermediate B 1 and intermediate C1 use intermediate B 3 and intermediate C4, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 5 (yield 39%).
Production Example 3-6:The compound synthesis of compound 6
Instead of intermediate B 1 and intermediate C1 use intermediate B 4 and intermediate C3, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 6 (yield 38%).
Production Example 3-7:The compound synthesis of compound 7
Instead of intermediate B 1 and intermediate C1 use intermediate D1 and intermediate A 1, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 7 (yield 37%).
Production Example 3-8:The compound synthesis of compound 8
Instead of intermediate B 1 and intermediate C1 use intermediate D2 and intermediate A 1, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 8 (yield 40%).
Production Example 3-9:The compound synthesis of compound 9
Instead of intermediate B 1 and intermediate C1 use intermediate D3 and intermediate A 1, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 9 (yield 38%).
Production Example 3-10:The compound synthesis of compound 10
Instead of intermediate B 1 and intermediate C1 use intermediate D4 and intermediate A 1, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 10 (yield 42%).
Production Example 3-11:The compound synthesis of compound 11
Instead of intermediate B 1 and intermediate C1 use intermediate D2 and intermediate A 2, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 11 (yield 40%).
Production Example 3-12:The compound synthesis of compound 12
Instead of intermediate B 1 and intermediate C1 use intermediate D5 and intermediate A 2, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 12 (yield 42%).
Production Example 3-13:The compound synthesis of compound 13
Instead of intermediate B 1 and intermediate C1 use intermediate D6 and intermediate A 2, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 13 (yield 40%).
Production Example 3-14:The compound synthesis of compound 14
Instead of intermediate B 1 and intermediate C1 use intermediate D3 and intermediate A 3, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 14 (yield 37%).
Production Example 3-15:The compound synthesis of compound 15
Instead of intermediate B 1 and intermediate C1 use intermediate D5 and intermediate A 3, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 15 (yield 39%).
Production Example 3-16:The compound synthesis of compound 16
Instead of intermediate B 1 and intermediate C1 use intermediate D7 and intermediate A 3, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 16 (yield 38%).
Production Example 3-17:The compound synthesis of compound 17
Instead of intermediate B 1 and intermediate C1 use intermediate D1 and intermediate A 4, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 17 (yield 35%).
Production Example 3-18:The compound synthesis of compound 18
Instead of intermediate B 1 and intermediate C1 use intermediate D4 and intermediate A 4, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 18 (yield 39%).
Production Example 3-19:The compound synthesis of compound 19
Intermediate A 1 is used instead of intermediate C1, in addition, utilizes the method identical side with manufacturing compound 1 Method, manufacture above-claimed cpd 19 (yield 43%).
Production Example 3-20:The compound synthesis of compound 20
Instead of intermediate B 1 and intermediate C1 use intermediate B 3 and intermediate A 3, in addition, using with manufactureization The method identical method of compound 1, manufacture above-claimed cpd 20 (yield 44%).
Embodiment 1
Will be withThe glass substrate that thickness thin film is coated with ITO (tin indium oxide) is put into the steaming dissolved with detergent In distilled water, washed using ultrasonic wave.Now, detergent uses the product of Fei Xier companies (Fischer Co.), distilled water Distilled water after being filtered 2 times using the filter (Filter) manufactured by Millipore Corp. (Millipore Co.).ITO is washed After washing 30 minutes, with distilled water 2 ultrasonic washings for carrying out 10 minutes repeatedly.After distillation water washing terminates, isopropyl is used successively After alcohol, acetone, methanol solvate carry out ultrasonic washing and dried, plasma washing machine is delivered to.In addition, utilize oxygen plasma Body, after aforesaid substrate is cleaned 5 minutes, deliver the substrate to vacuum evaporation plating machine.
On the ito transparent electrode prepared as described above withThickness thermal vacuum the following azepine of six nitrile six is deposited Benzophenanthrene (hexanitrile hexaazatriphenylene;HAT hole injection layer) is formed.Over the hole-injecting layer WithThickness thermal vacuum evaporation join as the 4-4'- double [N- (1- naphthyls)-N- phenyl aminos] of the material of transporting holes Benzene (NPB;HT-1) form hole transmission layer, in HT-1 evaporation films withThickness vacuum evaporation HT-2 compounds and Form electronic barrier layer.Then, with 44 in above-mentioned HT-2 evaporation films:44:12 weight is than chemical combination of the common evaporation as main body The compound 1 as phosphorescent dopants manufactured in thing H1 and H2 and Production Example 3-1, so as to be formedThe hair of thickness Photosphere.On above-mentioned luminescent layer withThickness vacuum evaporation ET-1 materials, further by ET-2 materials and 2% weight ratio Li withThickness is deposited and forms electron transfer layer and electron injecting layer altogether.On above-mentioned electron injecting layer withThickness AM aluminum metallization and form negative electrode.
In said process, the evaporation rate of organic matter maintainsAluminium maintainsEvaporation speed Degree, during evaporation, vacuum maintains 1 × 10-7~5 × 10-8Torr, make organic illuminating element.
Embodiment 2 to 9
When forming luminescent layer, as phosphorescent dopants, each compound described in table 1 below is used instead of compound 1, In addition, the organic illuminating element with the identical method of above-described embodiment 1, respectively manufacture embodiment 2 to 9 is implemented.
Comparative example 1 to 3
When forming luminescent layer, as dopant, instead of compound 1 using each compound described in table 1 below, except this Outside, implement the organic illuminating element with the identical method of above-described embodiment 1, respectively manufacture comparative example 1 to 3.
Experimental example 1
Apply electric current, measure voltage, effect to the organic illuminating element made in above-described embodiment 1 to 9 and comparative example 1 to 3 Rate, chromaticity coordinates and life-span, and the results are shown in table 1 below.
T95 refers to that brightness was reduced to the time needed for the 95% of original intensity.
[table 1]
Can be confirmed by above-mentioned table 1, use the present invention compound as phosphorescent dopants in the case of, with use E1 and The comparative example of E2 compound is compared, and excellent characteristic is shown in terms of the life-span.Thus can confirm, TMS substituents produce to the life-span It is raw to influence.In addition, in the case of embodiment 2 to 4,6 and 8, more than about 2 times of life characteristic increase compared with comparative example 2.By this The result of sample can confirm, notable according to the difference of the presence or absence of silyl substitution radicals He the position of substitution, aging variation.

Claims (9)

1. a kind of organo-metallic compound, it is represented by following chemical formula 1:
Chemical formula 1
In the chemical formula 1,
M is iridium (Ir), platinum (Pt), osmium (Os), titanium (Ti), zirconium (Zr) or hafnium (Hf),
R1To R3And R11To R13It is each independently hydrogen, deuterium, halogen, cyano group, nitro, amino, substituted or unsubstituted C1-60Alkane Base, C1-60Haloalkyl, substituted or unsubstituted C1-60Alkoxy, substituted or unsubstituted C1-60Halogenated alkoxy, substitution or not Substituted C3-60Cycloalkyl, substituted or unsubstituted C2-60Alkenyl, substituted or unsubstituted C6-60It is aryl, substituted or unsubstituted C6-60Aryloxy group or substituted or unsubstituted include more than the 1 heteroatomic C in N, O and S1-60Heterocyclic radical,
A1 is 0 to 7 integer,
A2 and a3 is each independently 0 to 4 integer,
B is 1 to 8 integer,
A1+b is less than 8,
N is 1,2 or 3.
2. organo-metallic compound according to claim 1, wherein, M is iridium (Ir).
3. organo-metallic compound according to claim 1, wherein, R1For hydrogen.
4. organo-metallic compound according to claim 1, wherein, R2And R3Be each independently hydrogen, methyl, ethyl or Phenyl.
5. organo-metallic compound according to claim 1, wherein, R11To R13For methyl.
6. organo-metallic compound according to claim 1, wherein, the compound be selected from following chemical formula 1-1 extremely Any of group represented by 1-8:
The chemical formula 1-1 into 1-8,
R1To R3And R11To R13, a1 to a3 and n it is identical with the definition in claim 1.
7. organo-metallic compound according to claim 1, wherein, the compound is appointing in following compounds It is a kind of:
8. a kind of organic illuminating element comprising:First electrode, it is opposed with the first electrode and possess second electrode, And possess more than 1 layer of organic matter layer between the first electrode and the second electrode, 1 in the organic matter layer Organo-metallic compound any one of layer claim 1 to 7 contained above.
9. organic illuminating element according to claim 8, wherein, the organic matter layer includes luminescent layer,
Include the phosphorescent dopants organo-metallic compound as the luminescent layer.
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Citations (2)

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Publication number Priority date Publication date Assignee Title
US20030162299A1 (en) * 2002-02-08 2003-08-28 Canon Kabushiki Kaisha Light emissive iridium (III) complexes
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Publication number Priority date Publication date Assignee Title
US20030162299A1 (en) * 2002-02-08 2003-08-28 Canon Kabushiki Kaisha Light emissive iridium (III) complexes
CN103827119A (en) * 2011-07-21 2014-05-28 罗门哈斯电子材料韩国有限公司 Novel organic electroluminescence compounds and organic electroluminescence device using the same

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