A BLUE EMITTING POLYMER DIODE UTILIZING BBOT AS AN ELECTRON TRANSPORTING LAYER

Zhang Zhilin; Jiang Xueyin; Xu Shaohong; Satio S; Nagamoto T; Omoto O

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A BLUE EMITTING POLYMER DIODE UTILIZING BBOT AS AN ELECTRON TRANSPORTING LAYER

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- A BLUE EMITTING POLYMER DIODE UTILIZING BBOT AS AN ELECTRON TRANSPORTING LAYER
- Chinese Journal of Luminescence Vol. 15, Issue 4, Pages: 363-365(1994)
- 作者机构：
  
  1. 上海科技大学材料系上海,201800
  2. 日本芝浦工业大学工学部东京,日本
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：31 May 1994，
  
  Published：30 November 1994
- 稿件说明：
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张志林, 蒋雪茵, 许少鸿, 齐藤觉, 长友隆男, 大本修. 以BBOT为电子传输层的聚合物蓝色发光二极管[J]. 发光学报, 1994,15(4): 363-365

Zhang Zhilin, Jiang Xueyin, Xu Shaohong, Satio S, Nagamoto T, Omoto O. A BLUE EMITTING POLYMER DIODE UTILIZING BBOT AS AN ELECTRON TRANSPORTING LAYER[J]. Chinese Journal of Luminescence, 1994,15(4): 363-365
张志林, 蒋雪茵, 许少鸿, 齐藤觉, 长友隆男, 大本修. 以BBOT为电子传输层的聚合物蓝色发光二极管[J]. 发光学报, 1994,15(4): 363-365 DOI：

Zhang Zhilin, Jiang Xueyin, Xu Shaohong, Satio S, Nagamoto T, Omoto O. A BLUE EMITTING POLYMER DIODE UTILIZING BBOT AS AN ELECTRON TRANSPORTING LAYER[J]. Chinese Journal of Luminescence, 1994,15(4): 363-365 DOI：

摘要

在前篇文章中

[1]

我们报导了以perylene掺杂的PVCz聚合物单层电致发光器件

得到蓝色发光

其亮度为59(cd/m

).在这篇文章中

我们以PVCz作为空穴传导层

BBOT为电子传导层制成了双层结构的发光二极管.亮度和效率都大大超过单层器件.

Abstract

Blue emitting electroluminescent diode using polyvenylcarbazole(PVCz)as a hole transporting layer and BBOT as an electron transporting layer has been constructed.A luminance of as high as 680cd/m

with quantum efficiency more than 0.15% has been obtained.In order improve the crystalization of the BBOT a novel structure has been used.Instead of the pure BBOT of former diode

in the improved diode(type Ⅱ)BBOT and PVCz were co-evaporated with gradual increase of BBOT concentration on the PVCz layer.The brightness could reach 1700cd/m

but no increase of efficeincy has been observed.A graded junction is supposed to be formed which increases the injected current and the light intensity.

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