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A kind of monolayer exciplex and monomolecular exciplex white light polymer and its preparation method and application

An exciplex, single-layer technology, applied in chemical instruments and methods, luminescent materials, semiconductor/solid-state device manufacturing, etc., can solve problems such as complex manufacturing processes, and achieve simple manufacturing processes, low manufacturing costs, and good spectra. The effect of controllability and device stability

Active Publication Date: 2018-02-27
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to use the blended single-layer structure to form an exciplex to emit light, so as to overcome the shortcomings of complex manufacturing processes for multi-layer structure devices

Method used

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  • A kind of monolayer exciplex and monomolecular exciplex white light polymer and its preparation method and application
  • A kind of monolayer exciplex and monomolecular exciplex white light polymer and its preparation method and application
  • A kind of monolayer exciplex and monomolecular exciplex white light polymer and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Embodiment 1: the preparation of polymer PF-T25

[0059] Under argon protection, 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxaborolin-2-yl)-9,9- Bis(4-(2-ethylhexyloxy)phenyl)fluorene (413.5mg, 0.5mmol), 2,7-dibromo-9,9-bis(4-(2-ethylhexyloxy) ) phenyl) fluorene (183.2mg, 0.25mmol), TPA (325.3mg, 0.25mmol), and palladium acetate (3.4mg, 0.015mmol) and tricyclohexyl phosphorus (8.4mg, 0.03mmol), after sealing the instrument, inject Stir 15mL of toluene until completely dissolved, heat up to 80°C, and then add 20wt% organic base tetrabutylhydroxylamine solution (2mL). Under the protection of argon, the reaction temperature was kept at 80°C. After 24 hours of reaction, 15 mg of 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxyborate -2-yl)-9,9-bis(4-(2-ethylhexyloxy)phenyl)fluorene, 1 mg of palladium acetate and 2 mg of tricyclohexylphosphine were dissolved in 3 mL of toluene and capped at 80 °C reaction temperature, after continuing the reaction for 12 hours, 0.5 mL of bromobenzene wa...

Embodiment 2

[0061] Embodiment 2: the preparation of polymer PF-OXD20

[0062] Under argon protection, 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxyboronate-2 base)-9,9- Dioctylfluorene (642.6mg, 1.0mmol), 2,7-dibromo-9,9-dioctylfluorene (329.0mg, 0.6mmol), 2,7-dibromo-9,9-bis(4- (5-(4-tert-butylphenyl)-2-oxadiazole)phenoxy)fluorene (424.4mg, 0.4mmol) and palladium acetate (6.8mg, 0.03mmol) and tricyclohexylphosphine (16.8mg, 0.06mmol), after sealing the instrument, inject 20mL of toluene and stir until completely dissolved, heat up to 80°C, and then add 20wt% organic base tetrabutylhydroxylamine solution (5mL). Under the protection of argon, the reaction temperature was kept at 80°C. After 24 hours of reaction, 25 mg of 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxyborate -2-yl)-9,9-bis(4-(2-ethylhexyloxy)phenyl)fluorene, 2 mg of palladium acetate and 4 mg of tricyclohexylphosphine were dissolved in 5 mL of toluene and capped at 80 °C reaction temperature, after continuing the reaction for 12 hours...

Embodiment 3

[0064] Embodiment 3: the preparation of polymer PFSO-OXD10

[0065] Under argon protection, 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxyboronate-2 base)-9,9- Dioctylfluorene (642.6mg, 1.0mmol), 2,7-dibromo-9,9-dioctylfluorene (329.0mg, 0.6mmol), 2,7-dibromo-9,9-bis(4- (5-(4-tert-butylphenyl)-2-oxadiazole)phenoxy)fluorene (212.2mg, 0.2mmol), 3,7-dibromo-dibenzothiophene-S,S-dioxy (74.8mg, 0.2mmol), palladium acetate (6.8mg, 0.03mmol) and tricyclohexylphosphine (16.8mg, 0.06mmol), after sealing the instrument, inject 20mL of toluene and stir until completely dissolved, heat up to 80°C, and then add 20 wt% solution of organic base tetrabutylhydroxylamine (5 mL). Under the protection of argon, the reaction temperature was kept at 80°C. After 24 hours of reaction, 25 mg of 2,7-bis(4,4,5,5-tetramethyl-1,3,2-dioxyborate -2-yl)-9,9-bis(4-(2-ethylhexyloxy)phenyl)fluorene, 2 mg of palladium acetate and 4 mg of tricyclohexylphosphine were dissolved in 5 mL of toluene and capped at 80 °C r...

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Abstract

The invention discloses a single-layer exciter complex and a single-molecular excicomplex white light polymer, a preparation method thereof and an application in an organic light-emitting diode. A device based on the blending of two blue light polymers can realize binary white light emission, and the invention provides a single-layer exciplex capable of emitting white light, which has high application value. And through molecular design, suitable electron donors and acceptors are respectively introduced into the polymer chain to form intramolecular exciplexes and realize exciplex-type single-molecule white light emission. The preparation method of the single-layer exciplex type complementary white light device is simple and easy, is suitable for solution processing such as solution spin coating and inkjet printing, and has good practicability in the application of white light organic light emitting diodes.

Description

technical field [0001] The present invention relates to the field of optoelectronic devices, in particular to the technical field of polymer electroluminescent devices, and in particular to a single-layer exciplex and monomolecular exciplex white light polymer, its preparation method and its application in organic light-emitting diodes . Background technique [0002] After years of development, organic electroluminescent devices have been industrialized. Among them, the white surface light source has huge application prospects and potential markets in lighting and display, and has attracted the attention of many scientific researchers and business people. Many world-renowned companies, such as Philips, Samsung, General Electric, Osram, etc., have invested a lot of manpower and financial resources in the research and development of lighting and display devices based on white light. White organic light-emitting diodes can realize full-color display through the method of opti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G61/02C08G61/12H01L51/50H01L51/54C09K11/06
CPCC09K11/06C08G61/02C08G61/124C08G61/126C08G2261/5222C08G2261/512C08G2261/411C08G2261/95C08G2261/143C08G2261/1434C08G2261/3142C08G2261/20C08G2261/3241C08G2261/3243C08G2261/124H10K85/113H10K85/111H10K50/11H10K2101/40Y02B20/00
Inventor 郭婷梁俊飞杨伟赵森曹镛
Owner SOUTH CHINA UNIV OF TECH
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