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

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• 作者：Xiao Wang 王肖 ; Jing-shuang Zhang 张敬熿/a> ; Cui-yun Peng 彭翠丿/a>…
• 刊名：Optoelectronics Letters
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：12
• 期：2
• 页码：89-92
• 全文大小：651 KB
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• 作者单位：Xiao Wang 王肖 (1)
  Jing-shuang Zhang 张敬爽a> (2)
  Cui-yun Peng 彭翠云a> (3)
  Kun-ping Guo 郭坤平a> (3)
  Bin Wei 魏斌 (3)
  Hao Zhang 张浩 (3)
  
  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, Shanghai, 200072, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Applied Optics, Optoelectronics and Optical Devices
  Chinese Library of Science
  
• 出版者：Tianjin University of Technology, co-published with Springer-Verlag GmbH
• ISSN：1993-5013

文摘

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.