Nanosegregation and Neighbor-Cation Control of Photoluminescence in Carbidonitridosilicate Phosphors

被引：49

作者：

Huang, Wan-Yu ^{[1
]}

Yoshimura, Fumitaka ^{[2
]}

Ueda, Kyota ^{[2
]}

Shimomura, Yasuo ^{[2
]}

Sheu, Hwo-Shuenn ^{[3
]}

Chan, Ting-Shan ^{[3
]}

Greer, Heather F. ^{[4
]}

Zhou, Wuzong ^{[4
]}

Hu, Shu-Fen ^{[5
]}

Liu, Ru-Shi ^{[1
]}

Attfield, J. Paul ^{[6
,7
]}

机构：

[1] Natl Taiwan Univ, Dept Chem, Taipei 106, Taiwan

[2] Sci & Technol Res Ctr Inc, Mitsubishi Chem Grp, Yokohama, Kanagawa 2278502, Japan

[3] Natl Synchrotron Radiat Res Ctr, Hsinchu 300, Taiwan

[4] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

[5] Natl Taiwan Normal Univ, Dept Phys, Taipei 116, Taiwan

[6] Univ Edinburgh, Ctr Sci Extreme Condit, Edinburgh EH9 3JZ, Midlothian, Scotland

[7] Univ Edinburgh, Sch Chem, Edinburgh EH9 3JZ, Midlothian, Scotland

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2013年 / 52卷 / 31期

基金：

英国工程与自然科学研究理事会;

关键词：

carbidonitridosilicate; phosphors; photoluminescence; thermal quenching; COLOR RENDERING INDEX; WHITE LEDS; LUMINESCENCE PROPERTIES; CRYSTAL-STRUCTURE; SR; BA; COORDINATION; OXYNITRIDE; M=CA;

D O I：

10.1002/anie.201302494

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Blue, green, and yellow phosphors are obtained in the Sr 1-xY0.98+xCe0.02Si4N 7-xCx system (x=0→1). Decreases in thermal quenching barrier height with x result from a dominant neighboring-cation effect, through which the replacement of Sr2+ by Y3+ reduces the covalency of Ce-N bonding. Green emission is observed from a cation-segregated nanostructure of SrYSi4N7 and Y2Si 4N6C domains in x=0.2-0.6 samples. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：8102 / 8106

页数：5

共 28 条

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