中国物理B ›› 2011, Vol. 20 ›› Issue (12): 127801-127801.doi: 10.1088/1674-1056/20/12/127801
周维列1, 向霞2, 李志杰2, 刘春明2, 祖小涛2, 程晓峰3, 贺少勃3, 袁晓东3, 郑万国3
Xiang Xia(向霞)a)†, Cheng Xiao-Feng(程晓峰)b), He Shao-Bo(贺少勃)b), Yuan Xiao-Dong(袁晓东)b), Zheng Wan-Guo(郑万国) b), Li Zhi-Jie(李志杰)a),Liu Chun-Ming(刘春明)a), Zhou Wei-Lie(周维列) c), and Zu Xiao-Tao (祖小涛)a)
摘要: A new blue photoluminescent material, a mixed tin and manganese oxide xerogel, is prepared via sol-hydrothermal-gel process assisted by citric acid. The composition xerogel exhibits strong blue emission at room temperature, with an emission maximum at 434 nm under short (234 nm) or long-wavelength (343 nm) ultraviolet excitation. The photoluminescent excitation spectrum of the mixed tin and manganese oxide xerogel, monitored at an intensity maximum wavelength of 434 nm of the emission, consists of two excitation peaks at 234 nm and 343 nm. With heat treatment temperature increasing from 110 ℃ to 200 ℃, the blue emission intensity increases remarkably, whereas it is almost completely quenched after being treated at 300 ℃. The carbon impurities in the mixed tin and manganese oxide xerogel, confirmed by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, should be responsible for the bright blue photoluminescence.
中图分类号: (Photoluminescence, properties and materials)