Optical Properties of Nd3+ Ion-Doped ZnO Nanocrystals

被引：55
作者：
Liu, Yongsheng
Luo, Wenqin
Li, Renfu
Chen, Xueyuan [1 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Optoelect Mat Chem & Phys, Fuzhou 350002, Fujian, Peoples R China
来源：
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2010年 / 10卷 / 03期
关键词：
ZnO; Nd3+; Energy Transfer; Photoluminescence; Optical Spectroscopy; EFFICIENT ENERGY-TRANSFER; TIO2; NANOCRYSTALS; THIN-FILMS; ROOM-TEMPERATURE; NANOPARTICLES; LUMINESCENCE; PHOTOLUMINESCENCE; SPECTROSCOPY; EMISSION; MICROSPHERES;
D O I：
10.1166/jnn.2010.2140
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Hexagonal Nd3+-doped ZnO nanocrystals with multiple luminescent centers were synthesized by means of a facile sol-gel method. The Nd3+-doped ZnO nanocrystals were characterized by using the X-ray diffraction, transmission electron microscopy, ultraviolet-visible reflectance spectra, and fluorescence spectroscopy. Host-to-Nd3+ energy transfer was observed for the first time in Nd3+-doped ZnO nanocrystals. It was found that Nd3+ ions can be effectively sensitized by the ZnO nanocrystals, resulting in sharp and intense characteristic Nd3+ luminescence. The photoluminescence (PL) and PL excitation spectra of Nd3+ ions in the ZnO nanocrystals were investigated in detail. Furthermore, the possible mechanism of host-to-Nd3+ energy transfer was also proposed on the basis of the optical properties of Nd3+ ions in the ZnO nanocrystals.
引用
收藏
页码：1871 / 1876
页数：6
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