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Zinc complex based on phenanthroimidazole as well as preparation method and application of zinc complex

A technology of zinc complexes and phenanthroimidazoles, applied in zinc organic compounds, chemical instruments and methods, semiconductor/solid-state device manufacturing, etc., can solve the problems of few main materials, poor performance, slow research and development, etc., and achieve easy purification , good thermal stability, simple synthesis effect

Inactive Publication Date: 2021-06-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with luminescent materials, the research on existing host materials develops slowly, and there are not many host materials to choose from and their performance is poor.

Method used

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  • Zinc complex based on phenanthroimidazole as well as preparation method and application of zinc complex
  • Zinc complex based on phenanthroimidazole as well as preparation method and application of zinc complex
  • Zinc complex based on phenanthroimidazole as well as preparation method and application of zinc complex

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]

[0038]The zinc complex organic fluorescent material Zn(TPPI) of the present embodiment 2 The preparation method comprises the following steps:

[0039] Step 1: the synthesis of intermediate M1, the reaction equation is as follows:

[0040]

[0041] In the three-neck round bottom flask of 50ml, add the 3 of 0.364g (1mmol), the 6-dibromophenanthrenequinone, the aniline of 0.372g (4mmol), the 2-methylbenzaldehyde of 0.136g (1mmol), 0.385g (5mmol) ammonium acetate and 20ml of glacial acetic acid. After the device was pumped and exhausted 5 times, it was refluxed and reacted for 10 hours under a nitrogen atmosphere. After cooling to room temperature, the solvent was removed by rotary evaporation, and then 20ml of deionized water was added, extracted three times with dichloromethane (20ml×3), the dichloromethane layer was taken out, and the solvent was removed by rotary evaporation to obtain a crude product. The crude product was purified by column chromatography u...

Embodiment 2

[0062] Example 2: Preparation and results of vacuum evaporation type organic electroluminescent device

[0063] Device structure:

[0064] Y1: [ITO / HATCN(10nm) / TAPC(30nm) / TCTA(4nm) / Zn(TPPI) 2 :3wt%Ir(bt) 2 (acac) / TmPyPB(25nm) / LiF(1nm) / Al];

[0065] YR: [ITO / HATCN(10nm) / TAPC(30nm) / TCTA(4nm) / mCP:3wt%Ir(bt) 2 (ac

[0066] ac)(15nm) / TmPyPB(25nm) / LiF(1nm) / Al];

[0067] Sonicate a 15mm×15mm×1mm glass substrate in acetone for 30 minutes, wipe it with a clean lint-free cloth, wash it with deionized water plus detergent and sonicate it for 15 minutes, then rinse it with deionized water, wipe it clean with a lint-free cloth dipped in acetone, and then Sonicate with acetone and isopropanol for 15 minutes respectively, and finally put them in an oven for drying. Place the dried glass substrate in an ultraviolet ozone environment for 15 minutes, and conduct evaporation in a high-vacuum film-forming equipment. During the process, the vacuum degree is kept at 5×10 -4 Below Pa. Evapor...

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Abstract

The invention discloses a zinc complex based on phenanthroimidazole and a preparation method and application thereof, and belongs to the technical field of organic electroluminescent materials, and the molecular formula of the zinc complex is Zn (TPPI) 2. The delta EST of the zinc-matched fluorescent material is 0.31 eV, the turn-on voltage of an electroluminescent device taking the zinc-matched fluorescent material as a subject and Ir (bt) 2 (acac) as an object is 2.6 V, the maximum brightness can reach 12526 cd / m < 2 >, and the maximum current efficiency, the maximum power efficiency and the maximum external quantum efficiency are 58.35 cd / A, 70.52 lm / W and 20.82% respectively.

Description

technical field [0001] The invention belongs to the technical field of organic electroluminescence materials, and in particular relates to a phenanthroimidazole-based zinc complex, a preparation method thereof and an application in fluorescent materials. Background technique [0002] Display technology is closely related to human life, labor production, and social development. Production, medical care, travel, and entertainment are all inseparable from display technology. Starting from cathode ray tubes, display technology has developed step by step, and display devices have become more and more efficient and safe, and have become an indispensable part of people's lives. Entering the 21st century of informationization, with the unprecedented prosperity of computer technology, the vigorous development of mobile communication and e-commerce, people put forward higher requirements for the new generation of flat panel displays. The future trend is to transmit a large amount of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F3/06C09K11/06H01L51/54
CPCC07F3/06C09K11/06C09K2211/1044C09K2211/18H10K85/381
Inventor 于军胜俞恒杨根杰陈善勇李璐
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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