Open AccessNear-infrared luminescence of Nd^3+ and Tm^3+ ions doped ZnO nanocrystals
Author(s) -
Yongsheng Liu,
Wenqin Luo,
Renfu Li,
Haomiao Zhu,
Xueyuan Chen
Publication year - 2009
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.17.009748
Subject(s) - luminescence , materials science , ion , wurtzite crystal structure , nanocrystal , doping , infrared , spectroscopy , photoluminescence , crystal (programming language) , infrared spectroscopy , analytical chemistry (journal) , optics , optoelectronics , nanotechnology , zinc , chemistry , physics , organic chemistry , chromatography , quantum mechanics , metallurgy , computer science , programming language
Intense near-infrared luminescence of Nd(3+) and Tm(3+) ions in the region of 860-1550 nm were achieved in 10-15 nm wurtzite ZnO nanocrystals fabricated by a facile sol-gel process. The optical properties of Nd(3+) and Tm(3+) ions were investigated by using the steady-state and time-resolved laser spectroscopy. Due to the well-ordered crystal-field surroundings experienced by Nd(3+) and Tm(3+) ions, sharp and well resolved emission lines of Nd(3+) and Tm(3+) ions were identified at 4-300 K. Time-resolved luminescence and decay behaviors of the (4)F(3/2)-->(4)I(11/2) transition of Nd(3+) ions reveal the existence of multiple Nd(3+) sites in ZnO nanocrystals.