发光学报, 2016, 37 (5): 519, 网络出版: 2016-05-11
YNbO4粉末材料中Er3+发光研究及其光谱性质J-O计算
Luminescence Characteristics of Er3+ in YNbO4 Powder Materials and J-O Calculation of Its Spectrum
摘要
为了研究Er3+/Yb3+共掺杂YNbO4粉末材料上转换发光特性,采用J-O理论计算了该材料的光谱性质。根据吸收谱各吸收峰面积拟合出谱线强度参数,并根据谱线强度参数计算出理论振子强度和实验振子强度,得到两者均方差为δrms=3.916×10-7。计算了YNbO4粉末材料中Er3+粒子的跃迁几率、跃迁分支比及能级寿命等参数,并计算得到了Er3+离子从能级 2H11/2、4S3/2和4F9/2到基态辐射跃迁的受激发射截面。研究结果表明YNbO4材料是一种优良的上转换基质材料。
Abstract
In order to study up-conversion luminescence characteristics of Er3+/Yb3+ co-doped YNbO4 powder materials, the spectrum property was calculated by using J-O theory in this paper. The spectrum intensity parameters were obtained by the fitting method based on the absorption peaks area of the absorption spectrum, and the theoretical oscillator intensity and the experimental oscillator intensity were figured out according to the spectrum intensity parameters, and the mean square deviation of them(δrms) was 3.916×10-7. The parameters such as the transition probability, transition branching ratio and energy level life etc. of Er3+ particles in YNbO4 powder materials were calculated, and the stimulated emission cross section of Er3+ radiative transition from the energy level 2H11/2, 4S3/2 and 4F9/2 to the ground state was also figured out. The experimental results show that YNbO4 is one kind of superior up-conversion matrix materials.
牛春晖, 任宣玮, 李晓英, 吕勇, 孟浩. YNbO4粉末材料中Er3+发光研究及其光谱性质J-O计算[J]. 发光学报, 2016, 37(5): 519. NIU Chun-hui, REN Xuan-wei, LI Xiao-ying, LYU Yong, MENG Hao. Luminescence Characteristics of Er3+ in YNbO4 Powder Materials and J-O Calculation of Its Spectrum[J]. Chinese Journal of Luminescence, 2016, 37(5): 519.