A kind of organic electroluminescent material containing metal platinum and its application

An electroluminescent material, metal platinum technology, applied in luminescent materials, organic chemistry, circuits, etc., can solve the problems of unsatisfactory life performance and achieve good industrialization prospects, good material stability, and narrow spectral half-peak width Effect

Active Publication Date: 2022-05-13
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The Forrest group used platinum octaethylporphyrin (PtOEP) to dope the small molecule host material 8-hydroxyquinoline aluminum to make a red electrophosphorescent device, and the external quantum efficiency reached 4%. So far, the research on electrophosphorescence has been greatly improved Attention, but the lifetime performance of the existing organic electrophosphorescent complexes is not ideal, and needs to be further improved

Method used

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  • A kind of organic electroluminescent material containing metal platinum and its application
  • A kind of organic electroluminescent material containing metal platinum and its application
  • A kind of organic electroluminescent material containing metal platinum and its application

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preparation example Construction

[0054] The specific reaction types involved in the preparation of the compounds of the present invention are classified as follows:

[0055] Reaction condition 1:

[0056] In a 250mL three-neck flask, under nitrogen protection, 0.02mol reactant A, 0.022mol reactant B, 0.05mol sodium tert-butoxide, 0.2mmol Pd 2 (dba) 3 , 0.2 mmol of tri-tert-butylphosphine was added to 150 mL of toluene, stirred and mixed, heated to 110-120 ° C, refluxed for 12-16 hours, and the reaction was complete; naturally cooled to room temperature, filtered, and the filtrate was rotary evaporated under reduced pressure until there was no distillate. Neutral silica gel column to obtain the product.

[0057] Reaction condition 2:

[0058] Add 0.05mol of reactant C, 41.6g of N-bromosuccinimide (NBS), 500mL of dichloromethane and 500mL of acetonitrile into the three-necked flask in sequence, and stir at room temperature for 24h. After the reaction, the precipitated solid product is vacuum pumped Filtrati...

preparation Embodiment 1

[0079]

[0080] Under a nitrogen atmosphere, weigh 0.01mol of reactant S-1 and dissolve it in 45mL of tetrahydrofuran, cool down to -78°C, slowly drop into a cyclohexane solution containing 0.02mol of n-butyllithium, after the dropwise addition, keep stirring for 30 minutes Slowly add a tetrahydrofuran solution containing 0.035mol trimethyl borate dropwise. After the dropwise addition, slowly warm up to room temperature and keep warm for 10 hours. After the reaction, cool down to 0°C and slowly drop in distilled water. Stir for 1 hour, then rise to room temperature; extract the reaction solution with 150 mL of ethyl acetate, wash the extract with 150 mL of saturated brine three times, and finally dry over anhydrous magnesium sulfate, and distill the solution under reduced pressure, and distill the obtained solid with 400 mL of V 甲苯 :V 乙醇 =3:1 mixed solution was recrystallized to obtain E-1.

[0081] In a 250mL three-neck flask, under nitrogen protection, 0.02mol reactant A...

preparation Embodiment 2

[0086]

[0087] Under a nitrogen atmosphere, weigh 0.01mol of reactant S-2 and dissolve it in 45mL of tetrahydrofuran, cool down to -78°C, slowly drop into a cyclohexane solution containing 0.02mol of n-butyllithium, after the dropwise addition, keep stirring for 30 minutes Slowly add a tetrahydrofuran solution containing 0.035mol trimethyl borate dropwise. After the dropwise addition, slowly warm up to room temperature and keep warm for 10 hours. After the reaction, cool down to 0°C and slowly drop in distilled water. Stir for 1 hour, then rise to room temperature; extract the reaction solution with 150 mL of ethyl acetate, wash the extract with 150 mL of saturated brine three times, and finally dry over anhydrous magnesium sulfate, and distill the solution under reduced pressure, and distill the obtained solid with 400 mL of V 甲苯 :V 乙醇 =3:1 mixed solution was recrystallized to obtain E-2.

[0088] In a 250mL three-neck flask, under nitrogen protection, 0.02mol reactant A...

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Abstract

The invention discloses an organic electroluminescence material containing metallic platinum and an application thereof, belonging to the technical field of semiconductors. The structure of the organic electroluminescent material containing metallic platinum is shown in general formula (1): general formula (1). The invention also discloses the application of the above-mentioned organic electroluminescence material containing metal platinum. The organic electroluminescent material of the present invention uses metal platinum as the structural core, has higher luminous efficiency, lower triplet lifetime, narrower spectral half-width and good material stability, and is used as a dopant material for the light-emitting layer. When applied to an OLED device, the luminous efficiency and lifespan of the device can be improved. The platinum-containing organic electroluminescence material of the invention has good application effect in OLED light-emitting devices, and has good industrialization prospects.

Description

technical field [0001] The invention relates to the technical field of semiconductor materials, in particular to an organic electroluminescent material containing metallic platinum and its application in organic electroluminescent devices. Background technique [0002] Research on improving the performance of OLED light-emitting devices includes: reducing the driving voltage of the device, improving the luminous efficiency of the device, and increasing the service life of the device. In order to realize the continuous improvement of the performance of OLED devices, not only the innovation of OLED device structure and manufacturing process is required, but also the continuous research and innovation of OLED photoelectric functional materials to create higher-performance OLED functional materials. [0003] Organic electroluminescent materials are divided into two categories: organic electroluminescent materials and organic electrophosphorescent materials. Among them, organic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D403/14C07D401/14C07D471/04C07D498/04C07D519/00C07D405/14C07D513/04C07D491/048C07D411/14C07D413/14C07D491/056C07D491/147C07D495/14C09K11/06H01L51/50H01L51/54
CPCC07D403/14C07D401/14C07D471/04C07D498/04C07D519/00C07D405/14C07D513/04C07D491/048C07D411/14C07D413/14C07D491/056C07D491/147C07D495/14C09K11/06C09K2211/185H10K85/346H10K50/11
Inventor 叶中华张兆超崔明
Owner JIANGSU SUNERA TECH CO LTD
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