白光LED用新型Eu或Gd共掺杂的Ce:YAG单晶荧光材料的光谱性能研究

稀有金属材料与工程, 2012, 41(8): 1371-1375.

白光LED用新型Eu或Gd共掺杂的Ce:YAG单晶荧光材料的光谱性能研究

华伟 ^1, , 向卫东 ^2, , 董永军 ^3, , 梁晓娟 ^4, , 杨帆 ^5, , 金怀东 ^6, , 梁续 ^7, , 吕春燕 ^8,

1.温州大学,浙江温州325035

2.温州大学,浙江温州325035

3.中国科学院上海光学精密机械研究所,上海201800

4.温州大学,浙江温州325035

5.温州大学,浙江温州325035

6.温州大学,浙江温州325035

7.中国科学院上海光学精密机械研究所,上海201800

8.湖州师范学院,浙江湖州313000

基金项目: 国家自然科学基金(60708021) 上海光技术专项(09DZ1142002;10DZ1140400) 温州科技计划项目(G20090082) 上海基础研究重点项目(09JC1414900) 浙江省科技厅重大科技专项国际科技合作项目(2008C14088)

关键词：荧光材料 , Ce:YAG单晶 , 共掺杂 , 光谱 , 白光LED

Study on Spectra Characteristics of Newly-Developed Eu or Gd Co-doped Ce:YAG Phosphor for White-LED

开展了白光LED用新型YAG单晶荧光材料的制备和光谱性能研究,采用提拉法生长Eu,Ce:YAG及Gd,Ce:YAG晶体,并通过吸收光谱,激发、发射光谱及电光性能等对晶体材料的光谱特性进行表征.结果表明,Eu或Gd共掺杂的Ce:YAG单晶荧光材料均可以被波长460 nm左右的蓝光芯片有效激发,产生一个范围为480～650 nm的宽峰发射.Eu3+或Gd3+共掺杂会对Ce3+离子的发光产生影响:Eu3+离子的掺杂,会对Ce3+离子的发光产生淬灭效应；而Gd3+离子取代基质y3+离子可以使Ce3+离子的发射峰发生红移.

参考文献

[1]	Kanji B;Kensho S;Yasunobu N .[J].Journal of Light & Visual Environment,1998,22:2.
[2]	Evans D L.Light-Emitting Diodes:Research,Manufacturing,and Applications[A].Bellingham,WA,1997:142.
[3]	E Fred Schubert;Jong Kyu Kim .[J].Science,2005,308:1274.
[4]	Shunsuke Fujita;Akihiko Sakamoto et al.[J].IEEE Journal of Selectedln Quantum Electronics,2005,14(05):1387.
[5]	Shunsuke Fujita;Saroru Yoshihara.[A].Bellingham,WA:Proc.of SPIE,2005
[6]	Nishiura S;Tanabe S;Fujioka K.[A].IOP Publishing IOP Conf.Series:Materials Science and Engineering 1 011 001,2009
[7]	Nishiura S;Tanabe S;Fujioka K .[J].Journal of Optical Materials,2011,33:688.
[8]	张希艳.稀土发光材料[M].北京:国防工业出版社,2005:3.
[9]	娄天军,王天喜,谷永庆,张裕平,张甲敏.YAG：Ce荧光粉体的柠檬酸盐分解法制备和表征[J].人工晶体学报,2007(04):931-934.
[10]	Su J;Zhang Q L .[J].Journal of Alloys and Compounds,2009,470:306.
[11]	Damien Boyer;Genevieve Bertrand-Chadeyron;Rachid Mahiou .Structural and optical characterizations of YAG:Eu~(3+) elaborated by the sol-gel process[J].Optical materials,2004(2):101-105.
[12]	Mihail Nazarov;Do Young Noh;Jongrak Sohn;Chulsoo Yoon .Influence of additional Eu~(3+) coactivator on the luminescence properties of Tb_3Al_5O_(12):Ce~(3+), Eu~(3+)[J].Optical materials,2008(9):1387-1392.
[13]	Mukherjee S;Sudarsan V;Vatsa RK;Tyagi AK .Luminescence studies on lanthanide ions (Eu3+, Dy3+ and Tb3+) doped YAG:Ce nano-phosphors[J].Journal of Luminescence: An Interdisciplinary Journal of Research on Excited State Processes in Condensed Matter,2009(1):69-72.
[14]	Smythe D J.[J].Earth and Environmental Science,2008:74.
[15]	夏国栋,周圣明,张俊计,张涟翰,贾广强,徐军.凝胶-燃烧法合成YAG：Eu3+纳米荧光材料的结构和发光性能[J].无机化学学报,2005(08):1203-1207.
[16]	Pan Y X;Wang W .[J].Journal of Alloys and Compounds,2009,488(02):638.
[17]	Kottaisamy M;Thiyagarajan P .[J].Materials Research Bulletin,2008,43:1657.

上一张下一张

计量

下载量()
访问量()

作者相关

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网