Luminescent properties of CaTiO3:Pr thin-film phosphor deposited on ZnO/ITO/glass substrate

被引:19
作者
Chung, SM
Han, SH
Song, KH
Kim, ES
Kim, YJ [1 ]
机构
[1] Kyonggi Univ, Dept Mat Sci & Engn, Suwon 443760, South Korea
[2] ETRI, OEL Device Team, Taejon 305350, South Korea
[3] Korean Agcy Technol & Standard, Digital Technol Standard Div, Gwacheon 427010, South Korea
关键词
Pr; cathodoluminescence; photoluminescence;
D O I
10.1016/j.jlumin.2005.01.007
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Red-emitting CaTio(3):Pr phosphor thin films were deposited on glass, ZnO/ITO/glass, and ITO/glass substrates by RF magnetron sputtering. The effects of various substrates and heat treatment on the structural and luminous properties were investigated. The films deposited on ZnO/ITO/glass exhibited superior crystallinity and more enhanced PL and CL properties compared with those on ITO/glass. The intermediate ZnO layer between phosphor film and ITO contributed to the growing behaviors and the roughening of CaTiO3:Pr phosphor thin films, and consequently, to the excellent luminescence. The luminescent properties of the films were improved by following heat-treatment due to a combination of factors, namely the transformation from amorphous to poly crystalline phases, the activation of the activators, and the elimination of microdefects. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:227 / 233
页数:7
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