Luminescence in rare earth-doped transparent glass ceramics containing GdF3 nanocrystals for lighting applications

被引：51

作者：

Shan, Zhifa ^{[1
]}

Chen, Daqin ^{[1
]}

Yu, Yunlong ^{[1
]}

Huang, Ping ^{[1
]}

Lin, Hang ^{[1
]}

Wang, Yuansheng ^{[1
]}

机构：

[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Grad Univ, Fuzhou 350002, Fujian, Peoples R China

来源：

JOURNAL OF MATERIALS SCIENCE | 2010年 / 45卷 / 10期

基金：

中国国家自然科学基金;

关键词：

UP-CONVERSION LUMINESCENCE; SPECTROSCOPY; GD3+; EU3+;

D O I：

10.1007/s10853-010-4266-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Rare earth ions-doped transparent glass ceramics containing hexagonal GdF3 nanocrystals with a mean size of 16 nm were prepared. Energy dispersive x-ray spectroscopy and luminescence spectrum investigation evidenced the incorporation of rare earth ions into GdF3 nanocrystals. The efficient energy transfer from Gd3+ to Tb3+ was demonstrated in the Tb3+-doped glass ceramics, which resulted in an intense green light emission originated from Tb3+: D-5(4) -> F-7(6) transition via the sensitization of Gd3+. Compared with the precursor glass, the Dy3+-doped glass ceramic exhibited longer lifetime and lower yellow-to-blue emission intensity ratio owing to the allocation of Dy3+ ions in the low-phonon-energy GdF3 environment. Under ultraviolet excitation, the Dy3+-doped samples emitted bright white light, indicating their potential application in white light emitting diodes.

引用

页码：2775 / 2779

页数：5

共 23 条

[1] Luminescence properties of Eu3+, Tb3+, and Gd3+ complexes of the hexadentate N-donor podand tris-[3-(2-pyridyl)pyrazol-1yl]hydroborate [J].