Enhancement of the phase stability in ZnGa2O3.994Se0.006: Li+, Mn2+ phosphors

被引:3
作者
Kim, JS
Kang, HI
Kim, WN
Choi, JC
Park, HL [1 ]
Kim, GC
Kim, TW
Hwang, YH
Mho, SI
Moon, JW
Moon, HS
Lee, C
Shin, DH
机构
[1] Yonsei Univ, Inst Phys & Appl Phys, Seoul 120749, South Korea
[2] Korea Univ Technol & Educ, Sch Liberal Arts, Cheonan 330708, South Korea
[3] Kwangwoon Univ, Dept Phys, Seoul 139701, South Korea
[4] Pusan Natl Univ, RCDAMP, Pusan 609735, South Korea
[5] Ajou Univ, Dept Chem, Suwon 442749, South Korea
[6] Yonsei Univ, Dept Earth Syst Sci, Seoul 120749, South Korea
[7] Sunchen Natl Univ, Dept Phys, Sunchen 540742, South Korea
[8] Dongguk Univ, Dept Phys, Seoul 100715, South Korea
关键词
zinc gallate; X-ray scattering; phase transitions; luminescence;
D O I
10.1016/S0038-1098(02)00770-6
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The degradation behavior of ZnGa2O3.994Se0.006: Li, Mn caused by thermal annealing and acceleration voltage was investigated. Thermal degradation of ZnGa2O3.994Se0.006: Li, Mn initiated from the volatilization of Se, whereas, commercial green phosphor, ZnS: Cu, Al, transformed from ZnS to ZnO. The cathodoluminescence measurements showed that the saturation characteristics of the luminance of ZnGa2O3.994Se0.006: Li, Mn at higher voltage were a little better than that of commercial green phosphor (ZnS: Cu, AI). These results indicate that the phase stability of ZnGa2O3.994Se0.006: Li, Mn in both thermal and acceleration voltage dependent degradations is superior to that of ZnS: Cu, Al. (C) 2003 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:209 / 212
页数:4
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