Novel green-emitting polymer containing fluorene and 1-(2-benzothiazolyl)-3,5-diphenylpyrazoline

Zhang Huaxi; Li Ying; Jiang Qing; Xie Minggui; Peng Junbao; Cao Yong

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Novel green-emitting polymer containing fluorene and 1-(2-benzothiazolyl)-3,5-diphenylpyrazoline

Zhang Huaxi #,Li Ying,Jiang Qing,Xie Minggui,Peng Junbao,Cao Yong

College of Chemistry, Sichuan University

*Correspondence author

#Submitted by

Subject:

Funding: 教育部博士点基金（No..20030610069）

Opened online:30 November 2006

Accepted by: none

Citation: Zhang Huaxi,Li Ying,Jiang Qing.Novel green-emitting polymer containing fluorene and 1-(2-benzothiazolyl)-3,5-diphenylpyrazoline[OL]. [30 November 2006] http://en.paper.edu.cn/en_releasepaper/content/10086

Novel electroluminescent (EL) polymer based on fluorene having benzothiazolylpyrazoline unit in the main chain was synthesized. The result polymer possessed satisfactory thermal stability with onset decomposition temperature(Td) of 401 ℃ and glass-transition temperature(Tg) of 213 ℃. The polymer emits green fluorescence with high photoluminescence (PL) quantum yield of 47%. Polymer light-emitting diode (PLED) was fabricated with the configuration of ITO/PEDT（40nm）/PVK（40nm）/polymer(80nm)/Ba(4nm)/Al(160nm) showed turn-on voltage of 4.5V, and it can emit green light with maximum brightness of 1726 cd m-2 with the maximum external quantum efficiency of 1.59 %.

Keywords:green-emitting ,polymer , fluorene

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