WO2020192042A1 - 电致发光材料、电致发光材料的制备方法及发光器件 - Google Patents

电致发光材料、电致发光材料的制备方法及发光器件 Download PDF

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WO2020192042A1
WO2020192042A1 PCT/CN2019/106408 CN2019106408W WO2020192042A1 WO 2020192042 A1 WO2020192042 A1 WO 2020192042A1 CN 2019106408 W CN2019106408 W CN 2019106408W WO 2020192042 A1 WO2020192042 A1 WO 2020192042A1
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reactant
electroluminescent material
intermediate product
sub
preparing
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English (en)
French (fr)
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吴凯龙
张曲
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武汉华星光电半导体显示技术有限公司
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Priority to US16/611,486 priority Critical patent/US11322694B2/en
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    • C07D401/14—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing three or more hetero rings
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    • H10K50/16—Electron transporting layers

Definitions

  • This application relates to the field of display, in particular to an electroluminescent material, a preparation method of the electroluminescent material, and a light-emitting device.
  • Organic Light Emitting Diode (Organic Light Emitting Diode) has self-luminescence characteristics, and the material leading its light emission is mainly electroluminescence material.
  • current red light emitting electroluminescence materials have a short life span, which often leads to Because of the practical effects of organic light-emitting diodes, it is necessary to provide a long-life electroluminescent material that emits red light, a method for preparing the electroluminescent material, and a light-emitting device.
  • This application provides an electroluminescent material, a preparation method of an electroluminescent material, and a light-emitting device, so as to realize a long-life electroluminescent material that emits red light, a preparation method of the electroluminescent material, and a light-emitting device.
  • An electroluminescent material the structural formula of the electroluminescent material is Wherein, the structural formula of R 1 is One of; the structural formula of R 2 is One of them.
  • a preparation method of electroluminescent material including:
  • a first reactant and a second reactant are provided.
  • the first reactant and the second reactant react to form a first intermediate product, wherein the structural formula of the first reactant is The structural formula of the second reactant is The structural formula of the first intermediate product is
  • a third reactant is provided, the first intermediate product and the third reactant react to form the electroluminescent material, wherein the third reactant includes a compound having an R1 group and a compound having an R2 group Compound, the structural formula of the electroluminescent material is Wherein, the structural formula of R 1 is One of; the structural formula of R 2 is One of them.
  • the molar amount of the first reactant and the second reactant are The corresponding relationship of the molar amount of is that 10 millimoles of the first reactant corresponds to 15 millimoles to 25 millimoles of the second reactant.
  • the first reactant and the second reactant are reacted in a first solvent to form a first intermediate product
  • the first solvent includes toluene, ethanol, and ethylene.
  • the first solvent has a first additive
  • the first solvent has a first additive
  • the first additive includes tris(dibenzylideneacetone).
  • sodium, sodium tert-butoxide and sodium bicarbonate One or a combination of sodium, sodium tert-butoxide and sodium bicarbonate.
  • the first intermediate product and the third reactant react to form the electroluminescent material
  • the R1 group and the R2 group are the same, and the corresponding relationship between the molar amount of the first intermediate product and the molar amount of the third reactant is 5 millimoles of the first intermediate product corresponding to 10 millimoles-40 Millimolar of the third reactant.
  • the first intermediate product and the third reactant are reacted in a second solvent to form the electroluminescent material
  • the second solvent includes One or a combination of water, N-methylpyrrolidone, toluene, ethanol, ethylene, perchloroethylene, trichloroethylene, acetone, ethylene glycol ether and triethanolamine.
  • the second solvent has a second additive
  • the second additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroboron
  • the second additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroboron
  • salt potassium hydroxide, palladium tetraphenylphosphorus, sodium hydroxide, sodium tert-butoxide, sodium carbonate and sodium bicarbonate.
  • the step of providing a third reactant in the step of providing a third reactant, the first intermediate product and the third reactant react to form the electroluminescent material,
  • the R1 group and the R2 group are different, the third reactant includes a first sub reactant and a second sub reactant, the third reactant is provided, the first intermediate product and the third reactant are provided
  • the step of reacting the substance to generate the electroluminescent material includes:
  • a first sub-reactant is provided, the first intermediate product and the first sub-reactant react to form the second intermediate product, the first sub-reactant is a compound having an R1 group, and the second The structural formula of the intermediate product is
  • a second sub-reactant is provided, the second intermediate product and the second sub-reactant react to generate the electroluminescent material, and the second sub-reactant is a compound having an R2 group.
  • the first intermediate product and the first sub-reactant react to form the second intermediate product
  • the corresponding relationship between the molar amount of the first intermediate product and the first sub-reactant is that 5 millimoles of the first intermediate product corresponds to 3 millimoles to 8 millimoles of the first sub-reactant.
  • the first intermediate product and the first sub-reactant react in a third solvent to form the second intermediate product
  • the third solvent includes One or a combination of water, N-methylpyrrolidone, toluene, ethanol, ethylene, perchloroethylene, trichloroethylene, acetone, ethylene glycol ether and triethanolamine.
  • the third solvent has a third additive
  • the third additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroboron
  • the third additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroboron
  • salt potassium hydroxide, palladium tetraphenylphosphorus, sodium hydroxide, sodium tert-butoxide, sodium carbonate and sodium bicarbonate.
  • the second intermediate product and the second sub-reactant react to form the electroluminescent material
  • the correspondence between the second intermediate product and the second sub-reactant is that 4 millimoles of the second intermediate product corresponds to 3 millimoles to 8 millimoles of the second sub-reactant.
  • the second intermediate product and the second sub-reactant react in a fourth solvent to form the electroluminescent material
  • the fourth solvent includes One or a combination of water, N-methylpyrrolidone, toluene, ethanol, ethylene, perchloroethylene, trichloroethylene, acetone, ethylene glycol ether and triethanolamine.
  • the fourth solvent has a fourth additive
  • the fourth additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroboron
  • the fourth additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroboron
  • salt potassium hydroxide, palladium tetraphenylphosphorus, sodium hydroxide, sodium tert-butoxide, sodium carbonate and sodium bicarbonate.
  • the step of providing a third reactant, and reacting the first intermediate product and the third reactant to generate the electroluminescent material includes:
  • the mixture including the electroluminescent material is separated and purified to obtain the electroluminescent material.
  • an extraction solvent is used to The mixture is extracted and chromatographed using a chromatography column.
  • the extraction solvent is one or a combination of dichloromethane, chloroform and tetrahydrofuran.
  • a light emitting device including:
  • a substrate layer including a base substrate and a first electrode layer disposed on the base substrate;
  • a hole transport layer, the hole transport layer is disposed on the substrate layer and is electrically connected to the first electrode layer;
  • An auxiliary layer, the auxiliary layer is disposed on the hole transport layer;
  • a light-emitting layer, the light-emitting layer is disposed on the auxiliary layer;
  • An electron transport layer, the electron transport layer is disposed on the light-emitting layer
  • a second electrode layer is electrically connected to the electron transport layer, wherein the light-emitting layer includes an electroluminescent material, and the structure of the electroluminescent material is wherein, the structural formula of R 1 is One of; the structural formula of R 2 is One of them.
  • the structural formula of the electroluminescent material is wherein, the structural formulae of R 1 and R2 are selected from Among them, strong electron-withdrawing groups such as cyano, pyridine, pyrimidine, and s-triazine are used to enhance the electron-withdrawing properties of the fluorenone acceptor unit, thereby enhancing the push-pull electronic effect between the electron donor unit and the electron acceptor unit within the molecule.
  • strong electron-withdrawing groups such as cyano, pyridine, pyrimidine, and s-triazine are used to enhance the electron-withdrawing properties of the fluorenone acceptor unit, thereby enhancing the push-pull electronic effect between the electron donor unit and the electron acceptor unit within the molecule.
  • FIG. 1 is a schematic diagram of the structure of the light emitting device provided by this application.
  • This application provides an electroluminescent material, the structural formula of the electroluminescent material is
  • R 1 The structural formula of R 1 is One of them.
  • R 2 The structural formula of R 2 is One of them.
  • the R1 and R2 may be the same. In other embodiments, the R1 and R2 may also be different.
  • the application also provides a method for preparing the electroluminescent material.
  • the preparation method of the electroluminescent material includes:
  • A. Provide a first reactant and a second reactant, the first reactant and the second reactant react to form a first intermediate product, wherein the structural formula of the first reactant is The structural formula of the second reactant is The structural formula of the first intermediate product is
  • reaction equation of the first reactant and the second reactant to generate the first intermediate product may be:
  • the corresponding relationship between the molar amount of the first reactant and the molar amount of the second reactant may be 10 millimoles of the first intermediate product.
  • One reactant corresponds to 15 millimoles to 25 millimoles of the second reactant.
  • the first reactant and the second reactant react in a first solvent to form a first intermediate product.
  • the first solvent includes one or a combination of toluene, ethanol, ethylene, perchloroethylene, trichloroethylene, acetone, ethylene glycol ether, and triethanolamine.
  • the first solvent contains a first additive.
  • the first additive includes tris(dibenzylideneacetone)dipalladium, tetrakistriphenylphosphorus palladium, 9,10-dihydro-9,9-diphenyl acridine, bis(2-diphenylphosphoridine) Base) ether, cesium carbonate, potassium hydroxide, sodium hydroxide, sodium tert-butoxide and sodium bicarbonate or a combination of several.
  • the first reactant is added to the single-mouth bottle And the second reactant Then add 9,10-dihydro-9,9-diphenylacridine, tris(dibenzylideneacetone)dipalladium, bis(2-diphenylphosphophenyl)ether and sodium tert-butoxide, the The corresponding relationship between the molar amount of the first reactant and the second reactant may be 10 millimoles of the first reactant corresponding to 21 millimoles of the second reactant.
  • Toluene is added under an argon atmosphere, and the temperature is 80 degrees Celsius. React for 24 hours to obtain a mixture including the first intermediate product, and then separate and purify to obtain the first intermediate product
  • the first intermediate product is a red powder.
  • the third reactant includes a compound having an R1 group and a compound having an R2 group
  • the structural formula of the electroluminescent material is Wherein, the structural formula of R 1 is One of; the structural formula of R 2 is One of them.
  • the R1 group and the R2 group may be the same.
  • the corresponding relationship between the molar amount of the first intermediate product and the molar amount of the third reactant is that 5 millimoles of the first intermediate product corresponds to 10 millimoles to 40 millimoles of the third reactant.
  • the first intermediate product and the third reactant react in a second solvent to generate the electroluminescent material.
  • the second solvent includes one or a combination of water, N-methylpyrrolidone, toluene, ethanol, ethylene, perchloroethylene, trichloroethylene, acetone, ethylene glycol ether, and triethanolamine.
  • the second solvent contains a second additive.
  • the second additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroborate, potassium hydroxide, palladium tetrakistriphenylphosphorus, sodium hydroxide, sodium tert-butoxide, sodium carbonate and One or a combination of sodium bicarbonate.
  • the first intermediate product is added to a single-mouth bottle And the third reactant cuprous cyanide (CuCN), the corresponding relationship between the molar amount of the first intermediate product and the molar amount of the third reactant is 5 millimoles of the first intermediate product corresponding to 30 millimoles.
  • N-methylpyrrolidone and react at 150 degrees Celsius for 18 hours to obtain a mixture containing electroluminescent materials, and then separate and purify to obtain the electroluminescent materials
  • the electroluminescent material is red powder.
  • reaction equation for the reaction between the first intermediate product and the third reactant is:
  • the first intermediate product is added to a single-mouth bottle And the third reactant
  • the corresponding relationship between the molar amount of the first intermediate product and the molar amount of the third reactant is that 5 millimoles of the first intermediate product corresponds to 12 millimoles of the third reactant, and then tetrabenzene is added. Then, add toluene, ethanol and deionized water, and react at 100 degrees Celsius for 48 hours to obtain a mixture containing electroluminescent material. Then, the electroluminescent material is obtained by separation and purification.
  • the electroluminescent material is red powder.
  • reaction equation for the reaction between the first intermediate product and the third reactant is:
  • the first intermediate product is added to a single-mouth bottle And the third reactant
  • the corresponding relationship between the molar amount of the first intermediate product and the molar amount of the third reactant is that 5 millimoles of the first intermediate product corresponds to 12 millimoles of the third reactant, and then tetrabenzene is added. Then, add toluene, ethanol and deionized water, and react at 100 degrees Celsius for 48 hours to obtain a mixture containing electroluminescent material. Then, the electroluminescent material is obtained by separation and purification.
  • the electroluminescent material is red powder.
  • reaction equation for the reaction between the first intermediate product and the third reactant is:
  • the first intermediate product is added to a single-mouth bottle And the third reactant
  • the corresponding relationship between the molar amount of the first intermediate product and the molar amount of the third reactant is that 5 millimoles of the first intermediate product corresponds to 12 millimoles of the third reactant, and then tetrabenzene is added. Then, add toluene, ethanol and deionized water, and react at 100 degrees Celsius for 48 hours to obtain a mixture containing electroluminescent material. Then, the electroluminescent material is obtained by separation and purification.
  • the electroluminescent material is red powder.
  • reaction equation for the reaction between the first intermediate product and the third reactant is:
  • the third reactant includes a first sub-reactant and a second sub-reactant.
  • the step of providing a third reactant, and reacting the first intermediate product and the third reactant to generate the electroluminescent material includes:
  • the first sub-reactant is a compound having an R1 group
  • the The structural formula of the second intermediate product is
  • the corresponding relationship between the molar amount of the first intermediate product and the first sub-reactant is that 5 millimoles of the first intermediate product corresponds to 3 millimoles to 8 millimoles of the first sub-reactant.
  • the first intermediate product and the first sub-reactant react in a third solvent to generate the second intermediate product.
  • the third solvent includes one or a combination of water, N-methylpyrrolidone, toluene, ethanol, ethylene, perchloroethylene, trichloroethylene, acetone, ethylene glycol ether, and triethanolamine.
  • the third additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroborate, potassium hydroxide, palladium tetrakistriphenylphosphorus, sodium hydroxide, sodium tert-butoxide, sodium carbonate and One or a combination of sodium bicarbonate.
  • the first intermediate product is added to a single-mouth bottle And the first sub-reactant
  • the corresponding relationship between the molar amount of the first intermediate product and the molar amount of the first sub-reactant is that 5 millimoles of the first intermediate product corresponds to 5 millimoles of the first sub-reactant, and then four Palladium triphenylphosphorus and anhydrous sodium carbonate were then added toluene, ethanol and deionized water, reacted at 100 degrees Celsius for 48 hours to obtain a mixture containing the second intermediate product, and then separated and purified to obtain the second intermediate product
  • the second intermediate product is a red powder.
  • reaction equation for the reaction between the first intermediate product and the first sub-reactant is:
  • the second intermediate product and the second sub-reactant react to generate the electroluminescent material, and the second sub-reactant is a compound having an R2 group.
  • the correspondence between the second intermediate product and the second sub-reactant is that 4 millimoles of the second intermediate product corresponds to 3 millimoles to 8 millimoles of the second sub-reactant.
  • the second intermediate product and the second sub-reactant react in a fourth solvent to generate the electroluminescent material.
  • the fourth solvent includes one or a combination of water, N-methylpyrrolidone, toluene, ethanol, ethylene, perchloroethylene, trichloroethylene, acetone, ethylene glycol ether, and triethanolamine.
  • the fourth solvent contains a fourth additive.
  • the fourth additive includes ferric chloride concentrated hydrochloric acid solution, palladium acetate, tri-tert-butylphosphine tetrafluoroborate, potassium hydroxide, palladium tetraphenylphosphorus, sodium hydroxide, sodium tert-butoxide, sodium carbonate and One or a combination of sodium bicarbonate.
  • the second intermediate product is added to the single-mouth bottle And the second sub-reactant
  • the corresponding relationship between the molar amount of the second intermediate product and the molar amount of the second sub-reactant is that 4 millimoles of the second intermediate product corresponds to 6 millimoles of the second sub-reactant, and then four Palladium triphenylphosphorus and anhydrous sodium carbonate, followed by adding toluene, ethanol and deionized water, reacting at 100 degrees Celsius for 48 hours to obtain a mixture containing electroluminescent materials, and then separating and purifying to obtain the electroluminescent materials
  • the electroluminescent material is red powder.
  • reaction equation for the reaction between the second intermediate product and the second sub-reactant is:
  • the reaction solution can be cooled to room temperature, quenched with saturated brine, extracted with extraction solvent for 2 to 5 times, combined the organic phases, spun into silica gel, and chromatographed with a chromatography column to obtain a red powder , which is the electroluminescent material.
  • the yield of the electroluminescent material is greater than or equal to 60%.
  • the extraction solvent may be one or a combination of dichloromethane, trichloromethane and tetrahydrofuran.
  • FIG. 1 is a schematic structural diagram of a light emitting device provided by this application.
  • the application provides a light emitting device 10.
  • the light emitting device 10 includes a substrate layer 11, a hole transport layer 12, an auxiliary layer 13, a light emitting layer 14, an electron transport layer 15 and a second electrode layer 16.
  • the substrate layer 11 includes a base substrate 111 and a first electrode layer 112 disposed on the base substrate 111.
  • the hole transport layer 12 is disposed on the substrate layer 10.
  • the hole transport layer 12 is electrically connected to the first electrode layer 112.
  • the auxiliary layer 13 is disposed on the hole transport layer 12.
  • the light-emitting layer 14 is disposed on the auxiliary layer 13.
  • the electron transport layer 15 is disposed on the light-emitting layer 14.
  • the second electrode layer 16 is electrically connected to the electron transport layer 15.
  • the base substrate 111 may be a glass substrate.
  • the first electrode layer 112 may be indium tin oxide.
  • the hole transport layer 12 may be 4,4'-cyclohexylbis[N,N-bis(4-methylphenyl)aniline].
  • the auxiliary layer 13 may be 4,4',4"-tris(carbazol-9-yl) triphenylamine.
  • the electron transport layer 15 may be 1,3,5-tris(3-(3-pyridyl) ) Phenyl) benzene (Tm3PyPB).
  • the cathode layer 15 may be lithium fluoride/aluminum (LiF/Al).
  • the light-emitting layer 14 includes the electroluminescent material, and the molecular structure of the electroluminescent material is :
  • the structural formula of R 1 is One of them.
  • the structural formula of R 2 is One of them.
  • Table 1 is a performance data table of the light emitting device provided by this application.
  • the structural formula of the electroluminescent material is wherein, the structural formulae of R 1 and R2 are selected from Among them, strong electron-withdrawing groups such as cyano, pyridine, pyrimidine, and s-triazine are used to enhance the electron-withdrawing properties of the fluorenone acceptor unit, thereby enhancing the push-pull electronic effect between the electron donor unit and the electron acceptor unit within the molecule.
  • strong electron-withdrawing groups such as cyano, pyridine, pyrimidine, and s-triazine are used to enhance the electron-withdrawing properties of the fluorenone acceptor unit, thereby enhancing the push-pull electronic effect between the electron donor unit and the electron acceptor unit within the molecule.

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  • Spectroscopy & Molecular Physics (AREA)
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Abstract

一种电致发光材料、其制备方法及包含所述发光材料的发光器件，利用氰基、吡啶、嘧啶、均三嗪等强吸电子基团增强芴酮受体单元的吸电子特性，从而增强分子内部电子给体单元和电子受体单元之间的推拉电子效应，使分子在发光红移的同时分子间电荷转移性质增强，从而达到进一步降低目标分子单线态能级和三线态能级之间能级差，获得了具有长寿命的、发出红光的电致发光材料。

Description

电致发光材料、电致发光材料的制备方法及发光器件 技术领域
本申请涉及显示领域，具体涉及一种电致发光材料、电致发光材料的制备方法及发光器件。
背景技术
在现有技术中，有机发光二极管(Organic Light Emitting Diode)具有自发光特性，主导其发光的材料主要为电致发光材料，但是，当前的发出红光的电致发光材料的寿命短，往往导致有机发光二极管的实效，因此，有必要提供一种具有长寿命的、发出红光的电致发光材料、电致发光材料的制备方法及发光器件。
技术问题
本申请提供一种电致发光材料、电致发光材料的制备方法及发光器件，以实现具有长寿命的、发出红光的电致发光材料、电致发光材料的制备方法及发光器件。
技术解决方案
一种电致发光材料，所述电致发光材料的结构式为
Figure PCTCN2019106408-appb-000001
其中，所述R 1的结构式为
Figure PCTCN2019106408-appb-000002
Figure PCTCN2019106408-appb-000003
Figure PCTCN2019106408-appb-000004
中的一种；所述 R 2的结构式为
Figure PCTCN2019106408-appb-000005
Figure PCTCN2019106408-appb-000006
Figure PCTCN2019106408-appb-000007
中的一种。
一种电致发光材料的制备方法，包括：
提供第一反应物和第二反应物，所述第一反应物和第二反应物进行反应生成第一中间产物，其中，所述第一反应物的结构式为
Figure PCTCN2019106408-appb-000008
所述第二反应物的结构式为
Figure PCTCN2019106408-appb-000009
所述第一中间产物的结构式为
Figure PCTCN2019106408-appb-000010
提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料，其中，所述第三反应物包括具有R1基团的化合物和具有R2基团的化合物，所述电致发光材料的结构式为
Figure PCTCN2019106408-appb-000011
其中，所述R 1的结构式为
Figure PCTCN2019106408-appb-000012
Figure PCTCN2019106408-appb-000013
Figure PCTCN2019106408-appb-000014
中的一种；所述R 2的结构式为
Figure PCTCN2019106408-appb-000015
Figure PCTCN2019106408-appb-000016
Figure PCTCN2019106408-appb-000017
Figure PCTCN2019106408-appb-000018
中的一种。
在本申请所提供的电致发光材料的制备方法中，在所述第一反应物和第二反应物进行反应生成第一中间产物中，所述第一反应物的摩尔量和第二反应物的摩尔量的对应关系为10毫摩的所述第一反应物对应15毫摩-25毫摩的所述第二反应物。
在本申请所提供的电致发光材料的制备方法中，所述第一反应物和第二反应物在第一溶剂中进行反应生成第一中间产物，所述第一溶剂包括甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，所述第一溶剂中具有第一添加剂，所述第一溶剂中具有第一添加剂，所述第一添加剂包括三(二亚苄基丙酮)二钯、四三苯基磷钯、9,10-二氢-9,9-二苯基吖啶、双(2-二苯基磷苯基)醚、碳酸铯、氢氧化钾、氢氧化钠、叔丁醇钠和碳酸氢钠中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，在所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤中，所述R1基团和R2基团相同，所述第一中间产物的摩尔量和所述第三反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应10毫摩-40毫摩的所述第三反应物。
在本申请所提供的电致发光材料的制备方法中，所述第一中间产物和所述第三反应物在第二溶剂中进行反应生成所述电致发光材料中，所述第二溶剂包括水、N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，所述第二溶剂中具有第二添加剂，所述第二添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，在所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤中，所述R1基团和R2基团不同，所述第三反应物包括第一子反应物和第二子反应物，所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤包括：
提供第一子反应物，所述第一中间产物和所述第一子反应物进行反应生成所述第二中间产物，所述第一子反应物为具有R1基团的化合物，所述第二中间产物的结构式为
Figure PCTCN2019106408-appb-000019
提供第二子反应物，所述第二中间产物和所述第二子反应物进行反应生成所述电致发光材料，所述第二子反应物为具有R2基团的化合物。
在本申请所提供的电致发光材料的制备方法中，在所述提供第一子反应物，所述第一中间产物和所述第一子反应物进行反应生成所述第二中间产物的步骤中，所述第一中间产物和所述第一子反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应3毫摩-8毫摩的所述第一子反应物。
在本申请所提供的电致发光材料的制备方法中，所述第一中间产物和所述第一子反应物在第三溶剂中进行反应生成所述第二中间产物，所述第三溶剂包括水、N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，所述第三溶剂中具有第三添加剂，所述第三添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，在所述提供第二子反应物，所述第二中间产物和所述第二子反应物进行反应生成所述电致发光材料中，所述第二中间产物和所述第二子反应物的对应关系为4毫摩的所述第二中间产物对应3毫摩-8毫摩的所述第二子反应物。
在本申请所提供的电致发光材料的制备方法中，所述第二中间产物和所述第二子反应物在第四溶剂中进行反应生成所述电致发光材料，所述第四溶剂包括水、N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，所述第四溶剂中具有第四添加剂，所述第四添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤包括：
所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成包括所述电致发光材料的混合物；
对包括所述电致发光材料的所述混合物进行分离提纯，得到所述电致发光材料。
在本申请所提供的电致发光材料的制备方法中，在所述对包括所述电致发光材料的所述混合物进行分离提纯，得到所述电致发光材料的步骤中，采用萃取溶剂对所述混合物进行萃取，采用层析柱进行层析。
在本申请所提供的电致发光材料的制备方法中，所述萃取溶剂为二氯甲烷、三氯甲烷和四氢呋喃中的一种或几种的组合。
在本申请所提供的电致发光材料的制备方法中，所述层析柱的配比为二氯甲烷的体积：正己烷的体积＝1:0.5-1:10。
一种发光器件，包括：
基板层，所述基板层包括衬底基板和设置于衬底基板上的第一电极层；
空穴传输层，所述空穴传输层设置于所述基板层上，并与所述第一电极层电连接；
辅助层，所述辅助层设置于所述空穴传输层上；
发光层，所述发光层设置于所述辅助层上；
电子传输层，所述电子传输层设置于所述发光层上；以及
第二电极层，所述第二电极层电连接所述电子传输层，其中，所述发光层包括电致发光材料，所述电致发光材 料的结构式为
Figure PCTCN2019106408-appb-000020
其中，所述R 1的结构式为
Figure PCTCN2019106408-appb-000021
Figure PCTCN2019106408-appb-000022
Figure PCTCN2019106408-appb-000023
中的一种；所述R 2的结构式为
Figure PCTCN2019106408-appb-000024
Figure PCTCN2019106408-appb-000025
Figure PCTCN2019106408-appb-000026
中的一种。
有益效果
在本申请所提供一种电致发光材料、电致发光材料的制备方法及发光器件中，所述电致发光材料的结构式为
Figure PCTCN2019106408-appb-000027
其中，所述R 1和R2的结构式选自为
Figure PCTCN2019106408-appb-000028
Figure PCTCN2019106408-appb-000029
Figure PCTCN2019106408-appb-000030
中，利用氰基、吡啶、嘧啶、均三嗪等强吸电子基团增强芴酮受体单元的吸电子特性，从而增强分子内部电子给体单元和电子受体单元之间的推拉电子效应，使分子在发光红移的同时分子间电荷转移性质增强，从而达到进一步降低目标分子单线态能级和三线态能级之间能级差，实现了具有长寿命的、发出红光的电致发光材料、电致发光材料的制备方法及发光器件。
附图说明
图1为本申请所提供的发光器件的结构示意图。
本发明的实施方式
本申请提供一种电致发光材料，所述电致发光材料的结构式为
Figure PCTCN2019106408-appb-000031
所述R 1的结构式为
Figure PCTCN2019106408-appb-000032
Figure PCTCN2019106408-appb-000033
Figure PCTCN2019106408-appb-000034
中的一种。
所述R 2的结构式为
Figure PCTCN2019106408-appb-000035
Figure PCTCN2019106408-appb-000036
Figure PCTCN2019106408-appb-000037
中的一种。
在一些实施例中，所述R1和R2可以相同。在另一些实施例中，所述R1和R2也可以不同。
本申请还提供一种电致发光材料的制备方法。所述电致发光材料的制备方法包括：
A、提供第一反应物和第二反应物，所述第一反应物和第二反应物进行反应生成第一中间产物，其中，所述第一反应物的结构式为
Figure PCTCN2019106408-appb-000038
所述第二反应物的结构式为
Figure PCTCN2019106408-appb-000039
所述第一中间产物的结构式为
Figure PCTCN2019106408-appb-000040
所述第一反应物和第二反应物进行反应生成第一中间产物的反应方程式可以为：
Figure PCTCN2019106408-appb-000041
在所述第一反应物和第二反应物进行反应生成第一中间产物中，所述第一反应物的摩尔量和第二反应物的摩尔量的对应关系可以为10毫摩的所述第一反应物对应15毫摩-25毫摩的所述第二反应物。
所述第一反应物和第二反应物在第一溶剂中进行反应生成第一中间产物。所述第一溶剂包括甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。所述第一溶剂中具有第一添加剂。所述第一添加剂包括三(二亚苄基丙酮)二钯、四三苯基磷钯、9,10-二氢-9,9-二苯基吖啶、双(2-二苯基磷苯基)醚、 碳酸铯、氢氧化钾、氢氧化钠、叔丁醇钠和碳酸氢钠中的一种或几种的组合。
在一种实施方式中，在单口瓶中加入所述第一反应物
Figure PCTCN2019106408-appb-000042
和第二反应物
Figure PCTCN2019106408-appb-000043
然后加入9,10-二氢-9,9-二苯基吖啶、三(二亚苄基丙酮)二钯、双(2-二苯基磷苯基)醚和叔丁醇钠，所述第一反应物和第二反应物的摩尔量的对应关系可以为10毫摩的所述第一反应物对应21毫摩的所述第二反应物，在氩气氛围下加入甲苯，在80摄氏度反应24小时，得到包括所述第一中间产物的混合物，然后分离提纯，得到所述第一中间产物
Figure PCTCN2019106408-appb-000044
所述第一中间产物为红色粉末。
B、提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料，其中，所述第三反应物包括具有R1基团的化合物和具有R2基团的化合物，所述电致发光材料的结构式为
Figure PCTCN2019106408-appb-000045
其中，所述R 1的结构式为
Figure PCTCN2019106408-appb-000046
Figure PCTCN2019106408-appb-000047
Figure PCTCN2019106408-appb-000048
中的一种；所述R 2的结构式为
Figure PCTCN2019106408-appb-000049
Figure PCTCN2019106408-appb-000050
Figure PCTCN2019106408-appb-000051
中的一种。
在一些实施例中，所述R1基团和R2基团可以相同。所述第一中间产物的摩尔量和所述第三反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应10毫摩-40毫摩的所述第三反应物。
所述第一中间产物和所述第三反应物在第二溶剂中进行反应生成所述电致发光材料。所述第二溶剂包括水、N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。所述第二溶剂中具有第二添加剂。所述第二添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
在一种实施方式中，在单口瓶中加入所述第一中间产物
Figure PCTCN2019106408-appb-000052
和第三反应物氰化亚铜(CuCN)，所述第一中间产物的摩尔量和所述第三反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应30毫摩的所述第三反应物，然后加入N-甲基吡咯烷酮，在150摄氏度反应18小时，得到含有电致发光材料的混合物，然后，分离提纯得到所述电致发光材料
Figure PCTCN2019106408-appb-000053
所述电致发光材料为红色粉末。
在本实施例中，所述第一中间产物和第三反应物进行反应的反应方程式为：
Figure PCTCN2019106408-appb-000054
在一种实施方式中，在单口瓶中加入所述第一中间产物
Figure PCTCN2019106408-appb-000055
和第三反应物
Figure PCTCN2019106408-appb-000056
所述第一中间产物的摩尔量和所述第三反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应12毫摩的所述第三反应物，然后加入四三苯基磷钯和无水碳酸钠，随后，加入甲苯、乙醇和去离子水，在100摄氏度反应48小时，得到含有电致发光材料的混合物，然后，分离提纯得到所述电致发光材料
Figure PCTCN2019106408-appb-000057
所述电致发光材料为红色粉末。
在本实施例中，所述第一中间产物和第三反应物进行反应的反应方程式为：
Figure PCTCN2019106408-appb-000058
在一种实施方式中，在单口瓶中加入所述第一中间产物
Figure PCTCN2019106408-appb-000059
和第三反应物
Figure PCTCN2019106408-appb-000060
所述第一中间产物的摩尔量和所述第三反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应12毫摩的所述第三反应物，然后加入四三苯基磷钯和无水碳酸钠，随后，加入甲苯、乙醇和去离子水，在100摄氏度反应48小时，得到含有电致发光材料的混合物，然后，分离提纯得到所述电致发光材料
Figure PCTCN2019106408-appb-000061
所述电致 发光材料为红色粉末。
在本实施例中，所述第一中间产物和第三反应物进行反应的反应方程式为：
Figure PCTCN2019106408-appb-000062
在一种实施方式中，在单口瓶中加入所述第一中间产物
Figure PCTCN2019106408-appb-000063
和第三反应物
Figure PCTCN2019106408-appb-000064
所述第一中间产物的摩尔量和所述第三反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应12毫摩的所述第三反应物，然后加入四三苯基磷钯和无水碳酸钠，随后，加入甲苯、乙醇和去离子水，在100摄氏度反应48小时，得到含有电致发光材料的混合物，然后，分离提纯得到所述电致发光材料
Figure PCTCN2019106408-appb-000065
所述电致发光材料为红色粉末。
在本实施例中，所述第一中间产物和第三反应物进行反应的反应方程式为：
Figure PCTCN2019106408-appb-000066
在一些实施例中，所述R1基团和R2基团可以不同。所述第三反应物包括第一子反应物和第二子反应物。所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤包括：
B1、提供第一子反应物，所述第一中间产物和所述第一子反应物进行反应生成所述第二中间产物，所述第一子反应物为具有R1基团的化合物，所述第二中间产物的结构式为
Figure PCTCN2019106408-appb-000067
所述第一中间产物和所述第一子反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应3毫摩-8毫摩的所述第一子反应物。
所述第一中间产物和所述第一子反应物在第三溶剂中进行反应生成所述第二中间产物。所述第三溶剂包括水、 N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。所述第三溶剂中具有第三添加剂。所述第三添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
在一种实施方式中，在单口瓶中加入所述第一中间产物
Figure PCTCN2019106408-appb-000068
和第一子反应物
Figure PCTCN2019106408-appb-000069
所述第一中间产物的摩尔量和所述第一子反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应5毫摩的所述第一子反应物，然后加入四三苯基磷钯和无水碳酸钠，随后，加入甲苯、乙醇和去离子水，在100摄氏度反应48小时，得到含有第二中间产物的混合物，然后，分离提纯得到所述第二中间产物
Figure PCTCN2019106408-appb-000070
所述第二中间产物为红色粉末。
在本实施例中，所述第一中间产物和第一子反应物进行反应的反应方程式为：
Figure PCTCN2019106408-appb-000071
B2、提供第二子反应物，所述第二中间产物和所述第二子反应物进行反应生成所述电致发光材料，所述第二子反应物为具有R2基团的化合物。
所述第二中间产物和所述第二子反应物的对应关系为4毫摩的所述第二中间产物对应3毫摩-8毫摩的所述第二子反应物。
所述第二中间产物和所述第二子反应物在第四溶剂中进行反应生成所述电致发光材料。所述第四溶剂包括水、N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。所述第四溶剂中具有第四添加剂。所述第四添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
在一种实施方式中，在单口瓶中加入所述第二中间产物
Figure PCTCN2019106408-appb-000072
和第二子反应物
Figure PCTCN2019106408-appb-000073
所述第二中间产物的摩尔量和所述第二子反应物的摩尔量的对应关系为4毫摩的所述第二中间产物对应6毫摩的所述第二子反应物，然后加入四三苯基磷钯和无水碳酸钠，随后，加入甲苯、乙醇和去离子水，在100摄氏度反应48小时，得到含有电致发光材料的混合物，然后，分离提纯得到所述电致发光材料
Figure PCTCN2019106408-appb-000074
所述电致发光材料为红色粉末。
在本实施例中，所述第二中间产物和第二子反应物进行反应的反应方程式为：
Figure PCTCN2019106408-appb-000075
在分离提纯中，可以先将反应液冷却至室温，采用饱和食盐水淬灭，采用萃取溶剂萃取2次-5次，合并有机相，旋成硅胶，采用层析柱进行层析，得红色粉末，也即所述电致发光材料。所述电致发光材料的产率大于等于60％。
所述萃取溶剂可以为二氯甲烷、三氯甲烷和四氢呋喃中的一种或几种的组合。所述层析柱的配比可以为二氯甲烷的体积：正己烷的体积＝1:0.5-1:10。
请参阅图1，图1为本申请所提供的发光器件的结构示意图。
本申请提供一种发光器件10。所述发光器件10包括基板层11、空穴传输层12、辅助层13、发光层14、电子传输层15和第二电极层16。
所述基板层11包括衬底基板111和设置于衬底基板111上的第一电极层112。所述空穴传输层12设置于所述基板层10上。所述空穴传输层12与所述第一电极层112电连接。所述辅助层13设置于所述空穴传输层12上。所述发光层14设置于所述辅助层13上。所述电子传输层15设置于所述发光层14上。所述第二电极层16电连接所述电子传输层15。
所述衬底基板111可以为玻璃基板。所述第一电极层112可以采用氧化铟锡。所述空穴传输层12可以为4,4’-环己基二[N,N-二(4-甲基苯基)苯胺]。所述辅助层13可以为4,4’,4”-三(咔唑-9-基)三苯胺。所述电子传输层15可以为1,3,5-三(3-(3-吡啶基)苯基)苯(Tm3PyPB)。所述阴极层15可以为氟化锂/铝(LiF/Al)。所述发光层14包括所述电致发光材料，所述电致发光材料的分子结构式为：
Figure PCTCN2019106408-appb-000076
所述R 1的结构式为
Figure PCTCN2019106408-appb-000077
Figure PCTCN2019106408-appb-000078
Figure PCTCN2019106408-appb-000079
中的一种。所述R 2的结构式为
Figure PCTCN2019106408-appb-000080
Figure PCTCN2019106408-appb-000081
Figure PCTCN2019106408-appb-000082
中的一种。
请参阅表1，表1为本申请所提供的发光器件的性能数据表。
Figure PCTCN2019106408-appb-000083
在本申请所提供一种电致发光材料、电致发光材料的制备方法及发光器件中，所述电致发光材料的结构式为
Figure PCTCN2019106408-appb-000084
其中，所述R 1和R2的结构式选自为
Figure PCTCN2019106408-appb-000085
Figure PCTCN2019106408-appb-000086
Figure PCTCN2019106408-appb-000087
中，利用氰基、吡啶、嘧啶、均三嗪等强吸电子基团增强芴酮受体单元的吸电子特性，从而增强分子内部电子给体单元和电子受体单元之间的推拉电子效应，使分子在发光红移的同时分子间电荷转移性质增强，从而达到进一步降低目标分子单线态能级和三线态能级之间能级差，实现了具有长寿命的、发出红光的电致发光材料、电致发光材料的制备方法及发光器件。

Claims (20)

  1. 一种电致发光材料，其中，所述电致发光材料的结构式为
    Figure PCTCN2019106408-appb-100001
    其中，所述R 1的结构式为
    Figure PCTCN2019106408-appb-100002
    Figure PCTCN2019106408-appb-100003
    Figure PCTCN2019106408-appb-100004
    中的一种；所述R 2的结构式为
    Figure PCTCN2019106408-appb-100005
    Figure PCTCN2019106408-appb-100006
    Figure PCTCN2019106408-appb-100007
    Figure PCTCN2019106408-appb-100008
    中的一种。
  2. 一种电致发光材料的制备方法，其中，包括：
    提供第一反应物和第二反应物，所述第一反应物和第二反应物进行反应生成第一中间产物，其中，所述第一反应物的结构式为
    Figure PCTCN2019106408-appb-100009
    所述第二反应物的结构式为
    Figure PCTCN2019106408-appb-100010
    所述第一中间产物的结构式为
    Figure PCTCN2019106408-appb-100011
    提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料，其中，所述第三反应物包括具有R1基团的化合物和具有R2基团的化合物，所述电致发光材料的结构式为
    Figure PCTCN2019106408-appb-100012
    其中，所述R 1的结构式为
    Figure PCTCN2019106408-appb-100013
    Figure PCTCN2019106408-appb-100014
    Figure PCTCN2019106408-appb-100015
    Figure PCTCN2019106408-appb-100016
    中的一种；所述R 2的结构式为
    Figure PCTCN2019106408-appb-100017
    Figure PCTCN2019106408-appb-100018
    Figure PCTCN2019106408-appb-100019
    中的一种。
  3. 如权利要求2所述的电致发光材料的制备方法，其中，在所述第一反应物和第二反应物进行反应生成第一 中间产物中，所述第一反应物的摩尔量和第二反应物的摩尔量的对应关系为10毫摩的所述第一反应物对应15毫摩-25毫摩的所述第二反应物。
  4. 如权利要求3所述的电致发光材料的制备方法，其中，所述第一反应物和第二反应物在第一溶剂中进行反应生成第一中间产物，所述第一溶剂包括甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。
  5. 如权利要求4所述的电致发光材料的制备方法，其中，所述第一溶剂中具有第一添加剂，所述第一溶剂中具有第一添加剂，所述第一添加剂包括三(二亚苄基丙酮)二钯、四三苯基磷钯、9,10-二氢-9,9-二苯基吖啶、双(2-二苯基磷苯基)醚、碳酸铯、氢氧化钾、氢氧化钠、叔丁醇钠和碳酸氢钠中的一种或几种的组合。
  6. 如权利要求2所述的电致发光材料的制备方法，其中，在所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤中，所述R1基团和R2基团相同，所述第一中间产物的摩尔量和所述第三反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应10毫摩-40毫摩的所述第三反应物。
  7. 如权利要求6所述的电致发光材料的制备方法，其中，所述第一中间产物和所述第三反应物在第二溶剂中进行反应生成所述电致发光材料中，所述第二溶剂包括水、N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。
  8. 如权利要求7所述的电致发光材料的制备方法，其中，所述第二溶剂中具有第二添加剂，所述第二添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
  9. 如权利要求2所述的电致发光材料的制备方法，其中，在所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤中，所述R1基团和R2基团不同，所述第三反应物包括第一子反应物和第二子反应物，所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤包括：
    提供第一子反应物，所述第一中间产物和所述第一子反应物进行反应生成所述第二中间产物，所述第一子反应物为具有R1基团的化合物，所述第二中间产物的结构式为
    Figure PCTCN2019106408-appb-100020
    提供第二子反应物，所述第二中间产物和所述第二子反应物进行反应生成所述电致发光材料，所述第二子反应物为具有R2基团的化合物。
  10. 如权利要求9所述的电致发光材料的制备方法，其中，在所述提供第一子反应物，所述第一中间产物和所述第一子反应物进行反应生成所述第二中间产物的步骤中，所述第一中间产物和所述第一子反应物的摩尔量的对应关系为5毫摩的所述第一中间产物对应3毫摩-8毫摩的所述第一子反应物。
  11. 如权利要求10所述的电致发光材料的制备方法，其中，所述第一中间产物和所述第一子反应物在第三溶剂中进行反应生成所述第二中间产物，所述第三溶剂包括水、N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。
  12. 如权利要求11所述的电致发光材料的制备方法，其中，所述第三溶剂中具有第三添加剂，所述第三添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
  13. 如权利要求9所述的电致发光材料的制备方法，其中，在所述提供第二子反应物，所述第二中间产物和所 述第二子反应物进行反应生成所述电致发光材料中，所述第二中间产物和所述第二子反应物的对应关系为4毫摩的所述第二中间产物对应3毫摩-8毫摩的所述第二子反应物。
  14. 如权利要求13所述的电致发光材料的制备方法，其中，所述第二中间产物和所述第二子反应物在第四溶剂中进行反应生成所述电致发光材料，所述第四溶剂包括水、N-甲基吡咯烷酮、甲苯、乙醇、乙烯、全氯乙烯、三氯乙烯、丙酮、乙烯乙二醇醚和三乙醇胺中的一种或几种的组合。
  15. 如权利要求14所述的电致发光材料的制备方法，其中，所述第四溶剂中具有第四添加剂，所述第四添加剂包括氯化铁浓盐酸溶液、醋酸钯、三叔丁基膦四氟硼酸盐、氢氧化钾、四三苯基磷钯、氢氧化钠、叔丁醇钠、碳酸钠和碳酸氢钠中的一种或几种的组合。
  16. 如权利要求2所述的电致发光材料的制备方法，其中，所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成所述电致发光材料的步骤包括：
    所述提供第三反应物，所述第一中间产物和所述第三反应物进行反应生成包括所述电致发光材料的混合物；
    对包括所述电致发光材料的所述混合物进行分离提纯，得到所述电致发光材料。
  17. 如权利要求16所述的电致发光材料的制备方法，其中，在所述对包括所述电致发光材料的所述混合物进行分离提纯，得到所述电致发光材料的步骤中，采用萃取溶剂对所述混合物进行萃取，采用层析柱进行层析。
  18. 如权利要求17所述的电致发光材料的制备方法，其中，所述萃取溶剂为二氯甲烷、三氯甲烷和四氢呋喃中的一种或几种的组合。
  19. 如权利要求17所述的电致发光材料的制备方法，其中，所述层析柱的配比为二氯甲烷的体积：正己烷的体积＝1:0.5-1:10。
  20. 一种发光器件，其中，包括：
    基板层，所述基板层包括衬底基板和设置于衬底基板上的第一电极层；
    空穴传输层，所述空穴传输层设置于所述基板层上，并与所述第一电极层电连接；
    辅助层，所述辅助层设置于所述空穴传输层上；
    发光层，所述发光层设置于所述辅助层上；
    电子传输层，所述电子传输层设置于所述发光层上；以及
    第二电极层，所述第二电极层电连接所述电子传输层，其中，所述发光层包括电致发光材料，所述电致发光材料的结构式为
    Figure PCTCN2019106408-appb-100021
    其中，所述R 1的结构式为
    Figure PCTCN2019106408-appb-100022
    Figure PCTCN2019106408-appb-100023
    Figure PCTCN2019106408-appb-100024
    Figure PCTCN2019106408-appb-100025
    中的一种；所述R 2的结构式为
    Figure PCTCN2019106408-appb-100026
    Figure PCTCN2019106408-appb-100027
    Figure PCTCN2019106408-appb-100028
    中的一种。
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