Flexible Blue Light Emitting Diodes Made from Dye Doped Poly (N-Vinylcarbazole) with Multilayer Structure

作     者：CHEN Bai-jun HOU Jing-ying HUANG Jing-song LIU Shi-yong 陈佰军;侯晶莹;黄劲松;刘式墉

作者机构：State Key Laboratory on Integrated OptoelectronicsJilin UniversityChangchun 130023 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：1997年第14卷第1期

页      面：74-76页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

主　　题：emitter layer repeatedly 

摘      要：Flexible blue light emitting diodes(LEDs)were fabricated by using poly(N-vinylcarbazole)(PVK)doped with high fluorescence dye,1,1,4,4-tetraphen1-1,3-butadiene(TPB),as a emitter layer,a layer of tris(8-quinolino1ato)aluminum(Ⅲ)(Alq3)as an electron-transporting layer,and a layer of 2-(4-biphenylyl)-5-(4-tertbutypheny)-1-3,4-oxadiazole(PBD)as hole-blocking layer;a cell structure of flexible substrate/indium-tin-oxide/PVK:TPB/PBD/Alq3/Al was *** this cell structure,carrier injection from the electrodes to the doped PVK layer and concomitant electroluminescence from doped PVK were observed at room temperature with dcbias voltage of *** emission peaks at about *** kind of LED is about 200μm thick and can be curled or bent repeatedly at sharp angles without failure.