Synthesis and characterization of processible electroluminescent poly[(2,7-diethynyl-9,9-di-2-ethylhexylfluorene)-alt-co-(2,5-thienylene)]

Xiaowei Zhan; Yunqi Liu; Daoben Zhu; Xuezhong Jiang; Alex K.-Y. Jen

doi:10.1016/S0379-6779(01)00371-X

Synthesis and characterization of processible electroluminescent poly[(2,7-diethynyl-9,9-di-2-ethylhexylfluorene)-alt-co-(2,5-thienylene)]

Xiaowei Zhan, Yunqi Liu, Daoben Zhu, Xuezhong Jiang, Alex K.-Y. Jen

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

12 Citations (Scopus)

Abstract

A processible conjugated copolymer poly(aryleneethynylene) containing electron-affinitive moiety of 2,7-diethynylfluorene and hole-transport moiety of thiophene (Th-PFE) is synthesized via a Pd-catalyzed coupling reaction. The polymer possesses a weight average molecular weight of 19700 and a polydispersity index of 2.26. Th-PFE shows excellent thermal stability with a decomposition temperature of 398°C. The HOMO, LUMO energy levels and band gap of Th-PFE are determined to be -5.31, -2.48 and 2.83eV, respectively, using cyclic voltammetry. Th-PFE in CHCl₃ solution shows strong emission around 444nm. Light-emitting diode with a structure of ITO/copper phthalocyanine/Th-PFE/Ca/Ag emits a nearly white light with an external quantum efficiency of 0.01%. © 2001 Elsevier Science B.V. All rights reserved.

Original language	English
Pages (from-to)	323-327
Journal	Synthetic Metals
Volume	124
Issue number	2-3
DOIs	https://doi.org/10.1016/S0379-6779(01)00371-X
Publication status	Published - 22 Oct 2001
Externally published	Yes

Research Keywords

Conjugated polymer
Coupling reactions
Electroluminescence
Light-emitting diode
Photoluminescence

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title = "Synthesis and characterization of processible electroluminescent poly[(2,7-diethynyl-9,9-di-2-ethylhexylfluorene)-alt-co-(2,5-thienylene)]",

abstract = "A processible conjugated copolymer poly(aryleneethynylene) containing electron-affinitive moiety of 2,7-diethynylfluorene and hole-transport moiety of thiophene (Th-PFE) is synthesized via a Pd-catalyzed coupling reaction. The polymer possesses a weight average molecular weight of 19700 and a polydispersity index of 2.26. Th-PFE shows excellent thermal stability with a decomposition temperature of 398°C. The HOMO, LUMO energy levels and band gap of Th-PFE are determined to be -5.31, -2.48 and 2.83eV, respectively, using cyclic voltammetry. Th-PFE in CHCl3 solution shows strong emission around 444nm. Light-emitting diode with a structure of ITO/copper phthalocyanine/Th-PFE/Ca/Ag emits a nearly white light with an external quantum efficiency of 0.01%. {\textcopyright} 2001 Elsevier Science B.V. All rights reserved.",

keywords = "Conjugated polymer, Coupling reactions, Electroluminescence, Light-emitting diode, Photoluminescence",

author = "Xiaowei Zhan and Yunqi Liu and Daoben Zhu and Xuezhong Jiang and Jen, {Alex K.-Y.}",

year = "2001",

month = oct,

day = "22",

doi = "10.1016/S0379-6779(01)00371-X",

language = "English",

volume = "124",

pages = "323--327",

journal = "Synthetic Metals",

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TY - JOUR

T1 - Synthesis and characterization of processible electroluminescent poly[(2,7-diethynyl-9,9-di-2-ethylhexylfluorene)-alt-co-(2,5-thienylene)]

AU - Zhan, Xiaowei

AU - Liu, Yunqi

AU - Zhu, Daoben

AU - Jiang, Xuezhong

AU - Jen, Alex K.-Y.

PY - 2001/10/22

Y1 - 2001/10/22

N2 - A processible conjugated copolymer poly(aryleneethynylene) containing electron-affinitive moiety of 2,7-diethynylfluorene and hole-transport moiety of thiophene (Th-PFE) is synthesized via a Pd-catalyzed coupling reaction. The polymer possesses a weight average molecular weight of 19700 and a polydispersity index of 2.26. Th-PFE shows excellent thermal stability with a decomposition temperature of 398°C. The HOMO, LUMO energy levels and band gap of Th-PFE are determined to be -5.31, -2.48 and 2.83eV, respectively, using cyclic voltammetry. Th-PFE in CHCl3 solution shows strong emission around 444nm. Light-emitting diode with a structure of ITO/copper phthalocyanine/Th-PFE/Ca/Ag emits a nearly white light with an external quantum efficiency of 0.01%. © 2001 Elsevier Science B.V. All rights reserved.

AB - A processible conjugated copolymer poly(aryleneethynylene) containing electron-affinitive moiety of 2,7-diethynylfluorene and hole-transport moiety of thiophene (Th-PFE) is synthesized via a Pd-catalyzed coupling reaction. The polymer possesses a weight average molecular weight of 19700 and a polydispersity index of 2.26. Th-PFE shows excellent thermal stability with a decomposition temperature of 398°C. The HOMO, LUMO energy levels and band gap of Th-PFE are determined to be -5.31, -2.48 and 2.83eV, respectively, using cyclic voltammetry. Th-PFE in CHCl3 solution shows strong emission around 444nm. Light-emitting diode with a structure of ITO/copper phthalocyanine/Th-PFE/Ca/Ag emits a nearly white light with an external quantum efficiency of 0.01%. © 2001 Elsevier Science B.V. All rights reserved.

KW - Conjugated polymer

KW - Coupling reactions

KW - Electroluminescence

KW - Light-emitting diode

KW - Photoluminescence

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U2 - 10.1016/S0379-6779(01)00371-X

DO - 10.1016/S0379-6779(01)00371-X

M3 - RGC 21 - Publication in refereed journal

SN - 0379-6779

VL - 124

SP - 323

EP - 327

JO - Synthetic Metals

JF - Synthetic Metals

IS - 2-3

ER -

Synthesis and characterization of processible electroluminescent poly[(2,7-diethynyl-9,9-di-2-ethylhexylfluorene)-alt-co-(2,5-thienylene)]

Abstract

Research Keywords

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