Intense up-conversion emissions of Yb3+/Dy3+ co-doped Al2O3 nanopowders prepared by non-aqueous sol–gel method

doi:10.1088/1674-1056/21/9/097803

中国物理B ›› 2012, Vol. 21 ›› Issue (9): 97803-097803.doi: 10.1088/1674-1056/21/9/097803

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Intense up-conversion emissions of Yb³⁺/Dy³⁺ co-doped Al₂O₃ nanopowders prepared by non-aqueous sol–gel method

李成仁^a, 李淑凤^b, 董斌^c, 孙景昌^a, 卜晓峰^a, 范旭楠^a

a College of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, China;
b School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China;
c School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, China

收稿日期:2012-01-07 修回日期:2012-04-06 出版日期:2012-08-01 发布日期:2012-08-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 11004092) and the Scientific Research Fund of Education Department of Liaoning Province, China (Grant No. 2009A417).

Intense up-conversion emissions of Yb³⁺/Dy³⁺ co-doped Al₂O₃ nanopowders prepared by non-aqueous sol–gel method

Li Cheng-Ren (李成仁)^a, Li Shu-Feng (李淑凤)^b, Dong Bin (董斌)^c, Sun Jing-Chang (孙景昌)^a, Bo Xiao-Feng (卜晓峰)^a, Fan Xu-Nan (范旭楠)^a

a College of Physics and Electronic Technology, Liaoning Normal University, Dalian 116029, China;
b School of Physics and Optoelectronic Technology, Dalian University of Technology, Dalian 116024, China;
c School of Physics and Materials Engineering, Dalian Nationalities University, Dalian 116600, China

Received:2012-01-07 Revised:2012-04-06 Online:2012-08-01 Published:2012-08-01
Contact: Li Cheng-Ren E-mail:lshdg@sina.com.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 11004092) and the Scientific Research Fund of Education Department of Liaoning Province, China (Grant No. 2009A417).

摘要/Abstract

摘要： Yb³⁺/Dy³⁺ co-doped Al₂O₃ nanopowders have been prepared by the non-aqueous sol-gel method and their up- conversion photoluminescence spectra are measured under excitation by 980-nm semiconductor laser. The results show that there are comparatively abundant spectra of up-conversion emissions centered at 378, 408, 527 and 543, and 663 nm, corresponding to ⁴G_9/2 → ⁶H_13/2, ⁴G_9/2 → ⁶H_11/2, ⁴I_15/2 → ⁶H_13/2, and ⁴F_9/2 → ⁶H_11/2 transitions of Dy³⁺, respectively. Two-photon and three-photon processes are involved in ultraviolet, violet, green, and red up-conversion emissions. The energy transition between Yb³⁺ and Dy³⁺ is discussed.

关键词: Yb³⁺/Dy⁺ co-doped Al₂O₃nanopowders, non-aqueous sol-gel method, photo- luminescence spectra, up-conversion emission

Abstract: Yb³⁺/Dy³⁺ co-doped Al₂O₃ nanopowders have been prepared by the non-aqueous sol-gel method and their up- conversion photoluminescence spectra are measured under excitation by 980-nm semiconductor laser. The results show that there are comparatively abundant spectra of up-conversion emissions centered at 378, 408, 527 and 543, and 663 nm, corresponding to ⁴G_9/2 → ⁶H_13/2, ⁴G_9/2 → ⁶H_11/2, ⁴I_15/2 → ⁶H_13/2, and ⁴F_9/2 → ⁶H_11/2 transitions of Dy³⁺, respectively. Two-photon and three-photon processes are involved in ultraviolet, violet, green, and red up-conversion emissions. The energy transition between Yb³⁺ and Dy³⁺ is discussed.

Key words: Yb³⁺/Dy⁺ co-doped Al₂O₃nanopowders, non-aqueous sol-gel method, photo- luminescence spectra, up-conversion emission

中图分类号: (Amorphous materials; glasses and other disordered solids)

78.55.Qr

李成仁, 李淑凤, 董斌, 孙景昌, 卜晓峰, 范旭楠. Intense up-conversion emissions of Yb³⁺/Dy³⁺ co-doped Al₂O₃ nanopowders prepared by non-aqueous sol–gel method[J]. 中国物理B, 2012, 21(9): 97803-097803.

Li Cheng-Ren (李成仁), Li Shu-Feng (李淑凤), Dong Bin (董斌), Sun Jing-Chang (孙景昌), Bo Xiao-Feng (卜晓峰), Fan Xu-Nan (范旭楠). Intense up-conversion emissions of Yb³⁺/Dy³⁺ co-doped Al₂O₃ nanopowders prepared by non-aqueous sol–gel method[J]. Chin. Phys. B, 2012, 21(9): 97803-097803.

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Intense up-conversion emissions of Yb³⁺/Dy³⁺ co-doped Al₂O₃ nanopowders prepared by non-aqueous sol–gel method

Intense up-conversion emissions of Yb³⁺/Dy³⁺ co-doped Al₂O₃ nanopowders prepared by non-aqueous sol–gel method

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