Influence of the growth conditions on the properties of CaS:Eu electroluminescent thin films

被引：26

作者：

Poelman, D

Vercaemst, R

VanMeirhaeghe, RL

Laflere, WH

Cardon, F

机构：

[1] Department of Solid State Science, University of Gent, B-9000 Gent

来源：

JOURNAL OF LUMINESCENCE | 1997年 / 75卷 / 02期

关键词：

thin film; electroluminescence; vacuum deposition; film morphology; CaS:Eu; Eu2+; H2S; Se;

D O I：

10.1016/S0022-2313(97)00119-1

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A detailed study of the structural, compositional and optical properties of electron beam deposited CaS:Eu electroluminescent devices is presented. Specific attention is paid to the influence of H2S addition - applied for the first time - and Se coevaporation during the phosphor film deposition. Upon addition of H2S or Se, the crystallinity of the layers improves, the oxygen contamination decreases and the surface roughness increases. Finally, the electroluminescent characteristics are correlated with the results of the structural analysis.

引用

页码：175 / 181

页数：7

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