Novel green thin-film electroluminescent devices utilizing ZnS nanocrystals doped with Tb compounds

被引：15

作者：

Toyama, T ^{[1
]}

Yoshimura, K ^{[1
]}

Fujii, A ^{[1
]}

Haze, H ^{[1
]}

Okamoto, H ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Engn Sci, Dept Syst Innovat, Toyonaka, Osaka 560, Japan

来源：

APPLIED SURFACE SCIENCE | 2005年 / 244卷 / 1-4期

关键词：

electroluminescence; nanocrystals; thin films; display devices; sputtering;

D O I：

10.1016/j.apsusc.2004.10.112

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Green emission from ZnS nanocrystals (NCs) doped with Tb compounds has been investigated employing a double insulating thin-film electroluminescent device (TFELD) structure which has been used for conventional ac-driven TFELDs. The EL emission mechanism is discussed, centered on the generation of electric-field-induced high-energy electrons in NCs. The influence of Tb concentrations and co-doping of Tb compounds on the device performance is presented. Finally, green EL emission with a maximum luminance of 30 cd/m(2) at 90 V0-p employing ZnS:Tb,O,F NCs as the active layer is demonstrated. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：524 / 527

页数：4

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