| Bright Blue Light—emitting Diodes Based on a Novel Fluorescent Dye Containing Heterocyclic Groups |
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| 引用本文： | XIEZhiyuan LIDongfeng 等. 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): 109-112,133 |
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| 作者姓名： | XIEZhiyuan LIDongfeng 等 |
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| 作者单位： | [1]NationalLab.ofIntegratedOptoelectron.,JilinUniversity,Changchun130023,CHN [2]Dept.ofLightChem.andText.En,JilinUniversity,Changchun130023,CHN |
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| 基金项目： | supported by the National "863" project [863-307-05-05(02)], National Natural Science foundation(69637010). |
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| 摘 要： | 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.
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| 关 键 词： | 杂环化合物 蓝光二极管 荧光染料 |
| 收稿时间： | 1998-01-05 |
Bright Blue Light-emitting Diodes Based on a Novel Fluorescent Dye Containing Heterocyclic Groups |
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| XIE Zhiyuan,HUANG Jingsong, CHEN Baijun, HOU Jingying, LIU Shiyong. Bright Blue Light-emitting Diodes Based on a Novel Fluorescent Dye Containing Heterocyclic Groups[J]. Semiconductor Photonics and Technology, 1998, 4(2): 109-112,133 |
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| Authors: | XIE Zhiyuan HUANG Jingsong CHEN Baijun HOU Jingying LIU Shiyong |
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| Abstract: | Novel molecular material, 1-benzotlliazoly-3 -phenyl --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 heterocyclic compound exhibited good characteristics of blue photoluminescence and electroluminescence, which had the emission peak at 450 nm. 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. |
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| Keywords: | Heterocyclic Compound Hole Block Layer Organic EL |
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