Up-conversion luminescence of Er3+-doped and Yb3+/Er3+ co-doped 12CaO·7Al2O3 poly-crystals
来源期刊：JOURNAL OF RARE EARTHS2011年第9期
论文作者：王锐 张昱屾 孙金超 刘亮 徐衍岭
文章页码：826 - 829
摘 要：The optical properties of Er3+-doped and Yb3+/Er3+ co-doped 12CaO·7Al2O3 （C12A7） poly-crystals, synthesized by high temperature solid state method, were investigated in detail. For Er3+-doped and Yb3+/Er3+ co-doped C12A7 poly-crystals, two main emission bands centered around 530/550 nm （green） and 660 nm （red） were observed under 980 nm diode laser excitation via an up-conversion process. The intensity of green up-conversion emission had a strong increase in Er3+ （1.0 mol.%, 1.5 mol.%, 3.0 mol.%）, and the intensity ratio of red to green up-conversion emission had an increase in Yb3+ （1.0 mol.%, 2.0 mol.%, 10. 0 mol.%）/Er3+ （fixed at 1.0 mol.%）. This detailed study of the up-conversion processes allowed us to identify the dominant up-conversion mechanisms in Er3+-doped and Yb3+/Er3+ co-doped C12A7 poly-crystals.
王锐，张昱屾，孙金超，刘亮，徐衍岭
Department of Applied Chemistry, Harbin Institute of Technology
摘 要：The optical properties of Er3+-doped and Yb3+/Er3+ co-doped 12CaO·7Al2O3 （C12A7） poly-crystals, synthesized by high temperature solid state method, were investigated in detail. For Er3+-doped and Yb3+/Er3+ co-doped C12A7 poly-crystals, two main emission bands centered around 530/550 nm （green） and 660 nm （red） were observed under 980 nm diode laser excitation via an up-conversion process. The intensity of green up-conversion emission had a strong increase in Er3+ （1.0 mol.%, 1.5 mol.%, 3.0 mol.%）, and the intensity ratio of red to green up-conversion emission had an increase in Yb3+ （1.0 mol.%, 2.0 mol.%, 10. 0 mol.%）/Er3+ （fixed at 1.0 mol.%）. This detailed study of the up-conversion processes allowed us to identify the dominant up-conversion mechanisms in Er3+-doped and Yb3+/Er3+ co-doped C12A7 poly-crystals.
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