The fluorescence properties of Yb3+ and Er3+ Co-doped YAl3(BO3)4 powders prepared by sol-gel method |
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Authors: | Weixiong You Fengqin Lai Xiaolin Liu Honghui Jiang Jinsheng Liao Ping Wang Bin Yang |
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Affiliation: | 1. School of Material Science and Engineering, Jiangxi University of Science and Technology, Ganzhou, 341000, PR China
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Abstract: | Yb3+ and Er3+ co-doped YAB powders were prepared by sol-gel method. The structure and fluorescence properties were investigated. XRD pattern indicated that the single phase was obtained at 1150°C and the structure belonged to rhombohedral. Under 379 nm excitation, two emissions around 983 nm and 1531 nm were observed and the effect of Yb3+ ion concentration on the emission intensity was discussed. The energy transfer was observed under 930 nm excitation and the energy transfer efficiencies for all samples were calculated. The lifetimes of 2 F 5/2 level of Yb3+ ion and 4 I 13/2 level of Er3+ ion were measured and the effect of Yb3+ ion concentration on the lifetime was also discussed. The results indicated that there was an additional mechanism for the decay of 4 I 13/2 level in powder samples. The Yb3+ and Er3+ co-doped YAB powders should be a potential candidate for ceramic laser materials. |
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