Structure and up-conversion luminescence of Pr3+/Yb3+ co-doped CaNb2O6 thin films by pulsed laser deposition
1 Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
2 Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
3 University of Chinese Academy of Sciences, Beijing 100049, China
4 Institute of Optical Communication Materials and State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou 510640, China
Abstract
Pr3+/Yb3+ co-doped CaNb2O6 thin films are deposited on Si(100) substrates by pulsed laser deposition and annealed at different temperatures in air atmosphere. X-ray diffraction, Raman spectroscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and photoluminescence spectra are used to characterize the samples. The results show that the annealing temperature has a strong effect on the film’s grain size, structure, morphology, and the up-conversion luminescence properties. The grain size and up-conversion luminescence of Pr3+/Yb3+ co-doped CaNb2O6 films increases with the increasing annealing temperature.
Yinzhen Wang, Pingping Duan, Ning Li, Juqing Di, Liaolin Zhang, Junyong Deng, Xuwei Sun, Benli Chu, Qinyu He. Structure and up-conversion luminescence of Pr3+/Yb3+ co-doped CaNb2O6 thin films by pulsed laser deposition[J]. Chinese Optics Letters, 2015, 13(5): 051603.
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