1 上海大学 新型显示技术及应用集成教育部重点实验室, 上海 200072
2 北华航天工业学院, 河北 廊坊 065000
基于有机发光二极管的电致发光原理，建立了载流子注入延迟时间和发光延迟时间模型，探索了延迟时间的影响因素，发现发光延迟时间与器件有效面积、器件厚度、外加电压等密切相关。通过制备不同面积的OLED器件，发现器件面积越小，发光延迟时间越短。以高速信号激励不同面积的OLEDs器件，面积为0.01 mm2的器件能够实现1 000 Mbit/s的信号传输速率，且能量利用率达到47.7%。
有机发光二极管 载流子注入 发光延迟时间 脉冲激发 器件面积 organic light-emitting diode carrier injection electroluminescence delay time pulse excitation device area
Author Affiliations
Abstract
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,
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.
光电子快报（英文版）
2016, 12(2): 89
