TRANSIENT-BEHAVIOR OF ORGANIC THIN-FILM ELECTROLUMINESCENCE

被引:227
作者
HOSOKAWA, C
TOKAILIN, H
HIGASHI, H
KUSUMOTO, T
机构
[1] Central Research Laboratories, Idemitsu Kosan Co.,Ltd., Sodegaura, Chiba 299-02
关键词
D O I
10.1063/1.107411
中图分类号
O59 [应用物理学];
学科分类号
摘要
Transient behavior for an organic thin film electroluminescence (EL) cell with ITO/triphenylamine derivative/tris (8-hydroxyquinolino) aluminum (Alq)/Mg:Ag structure was observed by short voltage pulse measurements. The EL response was of the order of 10(-7) s, and faster than that previously measured by Tang et al. [J. Appl. Phys. 65, 3610 (1989)]. In these measurements, we could observe carrier transit time. Then we concluded this carrier transit time should be attributed to that of electrons in Alq layer and the electron mobility of (5 +/- 2) X 10(-5) cm2/V s was obtained above the electric field of 1 MV/cm.
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页码:1220 / 1222
页数:3
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