White organic light-emitting diodes based on electroplex from polyvinyl carbazole and carbazole oligomers blends

doi:10.1088/1674-1056/19/3/037801

中国物理B ›› 2010, Vol. 19 ›› Issue (3): 37801-037801.doi: 10.1088/1674-1056/19/3/037801

White organic light-emitting diodes based on electroplex from polyvinyl carbazole and carbazole oligomers blends

赵祖金¹, 吕萍¹, 陈飞鹏², 徐斌², 田文晶²

(1)Department of Chemistry, Zhejiang University, Hangzhou 310027, China; (2)State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China

收稿日期:2009-05-17 修回日期:2009-09-22 出版日期:2010-03-15 发布日期:2010-03-15
基金资助:
Project supported by the National Basic Research Program of China (Grant No.~2009CB623605), the National Natural Science Foundation of China (Grant No.~50673035), Program for New Century Excellent Talents in Universities of Ministry of Education, the 111 Project (Grant No.~B06009).

White organic light-emitting diodes based on electroplex from polyvinyl carbazole and carbazole oligomers blends

Chen Fei-Peng(陈飞鹏)^a), Xu Bin(徐斌)^a), Zhao Zu-Jin(赵祖金)^b), Tian Wen-Jing (田文晶)^a)†, LÜ Ping(吕萍)^b), and Im Chan^c)

^a State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, China; ^b Department of Chemistry, Zhejiang University, Hangzhou 310027, China^c Department of Chemistry, Konkuk University, Korea

Received:2009-05-17 Revised:2009-09-22 Online:2010-03-15 Published:2010-03-15
Supported by:
Project supported by the National Basic Research Program of China (Grant No.~2009CB623605), the National Natural Science Foundation of China (Grant No.~50673035), Program for New Century Excellent Talents in Universities of Ministry of Education, the 111 Project (Grant No.~B06009).

摘要/Abstract

摘要： White organic light-emitting diodes with a blue emitting material fluorene-centred ethylene-liked carbazole oligomer (Cz6F) doped into polyvinyl carbazole (PVK) as the single light-emitting layer are reported. The optical properties of Cz6F, PVK, and PVK:Cz6F blends are studied. Single and double layer devices are fabricated by using PVK: Cz6F blends, and the device with the configuration of indium tin oxide (ITO)/PVK:Cz6F/ tris(8-hydroxyquinolinate)aluminium (Alq₃)/LiF/Al exhibits white light emission with Commission Internationale de l'éclairage chromaticity coordinates of (0.30, 0.33) and a brightness of 402~cd/m². The investigation reveals that the white light is composed of a blue--green emission originating from the excimer of Cz6F molecules and a red emission from an electroplex from the PVK:Cz6F blend films.

Abstract: White organic light-emitting diodes with a blue emitting material fluorene-centred ethylene-liked carbazole oligomer (Cz6F) doped into polyvinyl carbazole (PVK) as the single light-emitting layer are reported. The optical properties of Cz6F, PVK, and PVK:Cz6F blends are studied. Single and double layer devices are fabricated by using PVK: Cz6F blends, and the device with the configuration of indium tin oxide (ITO)/PVK:Cz6F/ tris(8-hydroxyquinolinate)aluminium (Alq₃)/LiF/Al exhibits white light emission with Commission Internationale de l'éclairage chromaticity coordinates of (0.30, 0.33) and a brightness of 402 cd/m². The investigation reveals that the white light is composed of a blue--green emission originating from the excimer of Cz6F molecules and a red emission from an electroplex from the PVK:Cz6F blend films.

Key words: white organic light-emitting diodes, electroluminescence, electroplex

中图分类号: (Light-emitting devices)

85.60.Jb

78.66.Qn (Polymers; organic compounds) 85.60.Bt (Optoelectronic device characterization, design, and modeling)

陈飞鹏, 徐斌, 赵祖金, 田文晶, 吕萍. White organic light-emitting diodes based on electroplex from polyvinyl carbazole and carbazole oligomers blends[J]. 中国物理B, 2010, 19(3): 37801-037801.

Chen Fei-Peng(陈飞鹏), Xu Bin(徐斌), Zhao Zu-Jin(赵祖金), Tian Wen-Jing (田文晶), LÜ Ping(吕萍), and Im Chan. White organic light-emitting diodes based on electroplex from polyvinyl carbazole and carbazole oligomers blends[J]. Chin. Phys. B, 2010, 19(3): 37801-037801.

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White organic light-emitting diodes based on electroplex from polyvinyl carbazole and carbazole oligomers blends

White organic light-emitting diodes based on electroplex from polyvinyl carbazole and carbazole oligomers blends

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