半导体光子学与技术, 1998, 4 (2): 109, 网络出版: 2011-08-08
Bright Blue Light-emitting Diodes Based on a Novel Fluorescent Dye Containing Heterocyclic Groups
Bright Blue Light-emitting Diodes Based on a Novel Fluorescent Dye Containing Heterocyclic Groups
摘要
Abstract
Novel molecular material ,1-benzothiazoly-3-pheny1-pyrazoline (BTPP) was found to function as bright blue light emitting dye in organic electroluminescent device, and its optical and electric characteristics were investigated. This heterovyclic compound exhibited good characteristics of blue photoluminescence and electroluminescence,which had the emission peak at 450nm .The single layer light-emitting devices using BTPP as light -emitting material dispersed in poly(N-vinylcarbazole)(PVK) and double layer ones using PBD as hole block layer above the light-emitting layer were fabricated using conventional spin-casting and vaccum vapour deposition methods. The introduction of PBD has enhanced electron injection and luminance efficiency, compared with the single layer LEDs.
XIE Zhiyuan, HUANG Jingsong, CHEN Baijun, HOU Jingying, LIU Shiyong, LI Dongfeng. Bright Blue Light-emitting Diodes Based on a Novel Fluorescent Dye Containing Heterocyclic Groups[J]. 半导体光子学与技术, 1998, 4(2): 109. XIE Zhiyuan, HUANG Jingsong, CHEN Baijun, HOU Jingying, LIU Shiyong, LI Dongfeng. Bright Blue Light-emitting Diodes Based on a Novel Fluorescent Dye Containing Heterocyclic Groups[J]. Semiconductor Photonics and Technology, 1998, 4(2): 109.