期刊
OPTIK
卷 200, 期 -, 页码 -出版社
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2019.163426
关键词
Glasses; Co-doping; Lifetime; Quantum efficiency; Luminescence; Upconversion
类别
资金
- TWAS-Italy [15-036 RG/REN/AS_C-FR3240288933]
- FAPESP-Brazil [2013/24064-8]
- CNPq (Brazilian National Council for Scientific and Technological Development) [421900/2018-0, 310941/2018-0]
Er3+-doped glasses are important materials to develop upconvertors, sensors, optical fibers and green solid state lasers. The upconversion and near-infrared transitions in Er3+-Yb3+ co-doped phosphate glasses are studied in this work and an improvement of 45% in the quantum efficiency of the glasses is observed by the addition of 1 mol% of Yb2O3. Judd-Ofelt analysis, lifetime of some excited states of Er3+ ions and energy transfer mechanisms are discussed.
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