Tri-indene-pyrene derivative blue-light emitting material, and preparation method and application thereof

A technology of pyrene derivatives and blue light materials, which is applied in the direction of luminescent materials, chemical instruments and methods, hydrocarbons, etc., can solve the problems of difficult preparation and mass production, and many steps in synthesis, so as to reduce quenching effect and synthesize The effect of simple process and high-efficiency electro-induced blue light emission

Inactive Publication Date: 2013-08-14
NANJING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its relatively complex multi-arm chemical structure, there are many steps in the synthesis, and it is not easy to prepare and mass produce
Not yet reported

Method used

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  • Tri-indene-pyrene derivative blue-light emitting material, and preparation method and application thereof
  • Tri-indene-pyrene derivative blue-light emitting material, and preparation method and application thereof
  • Tri-indene-pyrene derivative blue-light emitting material, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Synthesis of Triindene-Pyrene Derivative TrPy

[0026]

[0027] Target compound TrPy

[0028] According to the reaction route, compound 1-bromopyrene (1) is dissolved in freshly distilled tetrahydrofuran solvent, reacts with butyllithium at -78°C, and then adds compound pinacol borate 2 to obtain compound 1- Pyrene borate 3. Finally, 1-pyrene boronic acid ester 3 and tribromotriindene core 4 undergo Suzuki coupling reaction under the condition of tetrakistriphenylphosphopalladium as catalyst to obtain the target compound TrPy.

[0029] 【Reaction route】

[0030]

[0031]

Embodiment 2

[0033] Fabrication of Organic Electroluminescent Devices as Emissive Layers

[0034] A blue light device A, the device structure is: ITO / PEDOT:PSS (20nm) / NPB (30nm) / TrPy (30nm) / TPBI (40nm) / Ca:Ag; wherein TrPy is a blue light material of three indene-pyrene derivatives , as a light-emitting layer, and prepared by evaporation.

Embodiment 3

[0036] Fabrication of Organic Electroluminescent Devices as Emissive Layers

[0037] A blue light device B, the device structure is: ITO / PEDOT:PSS(20nm) / NPB(30nm) / TrPy(30nm) / BAlq(40nm) / Ca:Ag; wherein TrPy is a triacene-pyrene derivative blue light material , as a light-emitting layer, and prepared by evaporation.

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Abstract

The invention relates to a tri-indene-pyrene derivative blue-light emitting material, and a preparation method and application thereof. The material is a polysubstituted compound taking tri-indene as a core and seals the end by pyrene; the general formula structure is shown in the specification, wherein R is alkyl of C1-C12; the material has the characteristics that the material is simple in synthetic process, easy for volume production and easy to purify, and high chemical purity can be obtained by a simple column chromatography method; and the material displays excellent luminescence property, thermal stability, amorphous performance and spectral thermal stability when being applied as a luminescent film material, and has important application potential in the fields such organic electroluminescence and organic laser. In particular, an organic electroluminescence device using the material as the luminescent layer has efficient electroluminescent blue emission, improved color purity and excellent spectrum and apparatus stability; and the material is a blue organic electroluminescent material with practical prospect.

Description

technical field [0001] The invention belongs to the technical field of optoelectronic materials and applications, in particular to an organic electroluminescent material, more specifically to a blue-light material based on trisindene-pyrene derivatives and its preparation method and application; the material is based on trisindene The multi-substitution compound with pyrene as the core and terminated by pyrene can be widely used as a light-emitting material in organic light-emitting devices, especially stable and efficient blue organic electroluminescent thin film devices. Background technique [0002] Organic / Polymer Light-Emitting Device (OLED / PLED) is one of the hot frontiers of current scientific research. Displays made of it have high image quality, low energy consumption, large screen, and The advantages of folding, light and thin, and low processing cost represent the development trend of future display technology. In organic electroluminescent displays, to achieve l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C13/62C07C1/32C09K11/06H01L51/54
Inventor 赖文勇张燕徐巍栋陈垚黄维
Owner NANJING UNIV OF POSTS & TELECOMM
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