Effect of Yb3+ concentration on upconversion luminescence of AlON:Er3+ phosphors
来源期刊：JOURNAL OF RARE EARTHS2015年第3期
论文作者：苏明毅 周有福 王坤 黄得财 许文涛 曹永革
文章页码：227 - 230
摘 要：AlON:1.6 mol.%Er3+, x mol.%Yb3+（x=0, 2.6, 3.1, 3.6, 4.1, 4.6） phosphors were synthesized successfully by aluminothermic reduction and nitridation（ATRN） method and characterized by X-ray diffraction（XRD）, scanning electron microscopy（FESEM） and upconversion photoluminescence（UCPL） emission spectra. Under the excitation of diode laser 980 nm, the green（556 nm） and red（655 nm） upconverted emissions were observed, attributed to the 4S3/2→4I15/2 and 4F9/2→4I15/2 transition of Er3+respectively. The emission intensity increased with increasing Yb3+ concentration due to the energy transfer（ET） between Yb3+ and Er3+. The upconverted emission reached the highest as x=3.6, and was pump-power dependent involving a two-photon process.
苏明毅1,2，周有福1，王坤1,2，黄得财1，许文涛1，曹永革1
1. Key Laboratory of Optoelectronic Materials Chemistry and Physics, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences2. University of Chinese Academy of Sciences
摘 要：AlON:1.6 mol.%Er3+, x mol.%Yb3+（x=0, 2.6, 3.1, 3.6, 4.1, 4.6） phosphors were synthesized successfully by aluminothermic reduction and nitridation（ATRN） method and characterized by X-ray diffraction（XRD）, scanning electron microscopy（FESEM） and upconversion photoluminescence（UCPL） emission spectra. Under the excitation of diode laser 980 nm, the green（556 nm） and red（655 nm） upconverted emissions were observed, attributed to the 4S3/2→4I15/2 and 4F9/2→4I15/2 transition of Er3+respectively. The emission intensity increased with increasing Yb3+ concentration due to the energy transfer（ET） between Yb3+ and Er3+. The upconverted emission reached the highest as x=3.6, and was pump-power dependent involving a two-photon process.
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