发光学报Issue(3)：305-311,7.DOI:10.3788/fgxb20153603.0305
Er3+/Yb3+共掺TeO2-WO3-La2 O3玻璃中银纳米晶的析出及发光性能
Crystallization of Ag Nanocrystallites and Luminescence Properties in Er3+/Yb3+ Co-doped TeO2-WO3-La2 O3 Glasses
摘要
Abstract
TeO2-WO3-La2 O3-AgNO3 glass samples were prepared via melt-quenching method, and the transparent tellurite glasses with Ag nanocrystallites were obtained by heat treatment. The trans-mittance spectra and stimulated emission spectra of the glass samples with different heat-treatment systems were measured. Ag nanocrystallites in glasses were examined by HR-TEM images, and the luminescence enhancement mechanism was also analyzed. The results show that Ag nanocrystallites are crystallized by heat treatment under 390 ℃ for 15 min. The two-photon absorption process of green and red light in glass does not change after Ag nanocrystallites are introduced. Because of the enhanced local electric field generated by Ag nanocrystallites, the up-conversion and near-infrared luminescence of Ag-contained glass increase, of which the green light intensity of the glass contai-ning Ag nanocrystallites is 5 times as much as that of glass without Ag nanocrystallites.关键词
碲酸盐玻璃/铒镱共掺/银纳米晶/局域场增强Key words
tellurite glass/Er3+ /Yb3+ co-doped/Ag nanocrystallites/local field enhancement分类
数理科学引用本文复制引用
张硕,林健,张文俊..Er3+/Yb3+共掺TeO2-WO3-La2 O3玻璃中银纳米晶的析出及发光性能[J].发光学报,2015,(3):305-311,7.基金项目
上海市科学技术委员会项目(12nm0504700)资助 （12nm0504700）
