High-brightness blue organic light emitting diodes with different types of guest-host systems

WANG Xiao; ZHANG Jing-shuang; PENG Cui-yun; GUO Kun-ping; WEI Bin; ZHANG Hao

doi:doi:10.1007/s11801-016-5232-1

光电子快报（英文版）, 2016, 12 (2): 89, Published Online: Oct. 12, 2017

High-brightness blue organic light emitting diodes with different types of guest-host systems

论文大纲

WANG Xiao ¹ZHANG Jing-shuang ²PENG Cui-yun ³GUO Kun-ping ³WEI Bin ³ZHANG Hao ^3,*

Author Affiliations

¹ School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China

² Langfang Polytechnic Institute, Langfang 065001, China

³ Key Laboratory of Advanced Display and System Application, Ministry of Education of China, Shanghai University,

Abstract

We demonstrate high-brightness blue organic light emitting diodes (OLEDs) using two types of guest-host systems. A series of blue OLEDs were fabricated using three organic emitters of dibenz anthracene (perylene), di(4-fluorophenyl) amino-di (styryl) biphenyl (DSB) and 4,4'-bis[2-(9-ethyl-3-carbazolyl)vinyl]biphenyl (BCzVBi) doped into two hosting materials of 4,4'-bis(9-carbazolyl) biphenyl (CBP) and 2-(4-biphenylyl)-5(4-tert-butyl-phenyl)-1,3,4-oxadiazole (PBD) as blue emitting layers, respectively. We achieve three kinds of devices with colors of deep-blue, pure-blue and sky-blue with the Commission Internationale de L'Eclairage (CIE) coordinates of (0.16, 0.10), (0.15, 0.15) and (0.17, 0.24), respectively, by employing PBD as host material. In addition, we present a microcavity device using the PBD guest-host system and achieve high-purity blue devices with narrowed spectrum.

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WANG Xiao, ZHANG Jing-shuang, PENG Cui-yun, GUO Kun-ping, WEI Bin, ZHANG Hao. High-brightness blue organic light emitting diodes with different types of guest-host systems[J]. 光电子快报（英文版）, 2016, 12(2): 89.

High-brightness blue organic light emitting diodes with different types of guest-host systems

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