Improvement in aging characteristics by Zn doping of electron-beam evaporated SrS:Ce thin-film electroluminescent devices

被引：8
作者：
Ohmi, K
Hirose, T
Harada, M
Tanaka, S
Kobayashi, H
机构：
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 1997年 / 36卷 / 1AB期
关键词：
thin-film electroluminescence; SrS:Ce; Zn doping; aging characteristics; dynamic space charge;
D O I：
10.1143/JJAP.36.L33
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Aging characteristics of electron-beam evaporated SrS:Ce thin film electroluminescent devices have been improved by using a SrS:Ce and ZnS mixture source pellet. For the Zn-doped device, luminance is maintained at more than 60% of the initial value and threshold voltage remains constant for more than 1000 hours of aging at 500 Hz drive. A rapid decrease in luminance corresponds to a decrease in dynamic space charge, and is reduced by Zn doping. In contrast, a slow decrease in luminance is attributed to a change in the electron emission characteristics of phosphor-insulator interfaces.
引用
收藏
页码：L33 / L36
页数：4
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