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Broadband shifting luminescence in Cr³⁺/Yb³⁺ codoped Y₃Al₅O₁₂ thin films by pulsed laser deposition

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【Author】 Yinzhen Wang;Ning Li;Pingping Duan;Junyong Deng;Liaolin Zhang;Benli Chu;Qinyu He;Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University;Institute of Optical Communication Materials and State Key Laboratory of Luminescent Materials and Devices,South China University of Technology;

【机构】 Guangdong Provincial Key Laboratory of Quantum Engineering and Quantum Materials, School of Physics and Telecommunication Engineering, South China Normal University； Institute of Optical Communication Materials and State Key Laboratory of Luminescent Materials and Devices,South China University of Technology；

【摘要】 Cr3t∕Yb3tcodoped Y3Al5O12(i.e., YAG) thin films are prepared by pulsed laser deposition. The films are characterized by X-ray diffraction, atomic force microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and photoluminescence spectra. Excitation at 446 or 587 nm, a broadband emission in the range of 610–800 nm, and an intense near-infrared at 1030 nm are obtained, showing cooperative energy transfer from Cr3 tto Yb3tions in the Cr3t∕Yb3tcodoped YAG thin films; energy transfer efficiency is 71%. The YAG films may have potential application to enhance the efficiency of silicon solar cells.更多还原

【Abstract】 Cr3t∕Yb3tcodoped Y3Al5O12(i.e., YAG) thin films are prepared by pulsed laser deposition. The films are characterized by X-ray diffraction, atomic force microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and photoluminescence spectra. Excitation at 446 or 587 nm, a broadband emission in the range of 610–800 nm, and an intense near-infrared at 1030 nm are obtained, showing cooperative energy transfer from Cr3 tto Yb3tions in the Cr3t∕Yb3tcodoped YAG thin films; energy transfer efficiency is 71%. The YAG films may have potential application to enhance the efficiency of silicon solar cells.更多还原

【关键词】 pulsed； photoelectron； Yb； luminescence； cooperative； intense； relaxation； excitation； lifetime； SAED；

【基金】 supported by the National Natural Science Foundation of China(Nos.11474104 and 51372092);the China Postdoctoral Science Foundation(No.2012M511801)

【文献出处】 Chinese Optics Letters ,中国光学快报(英文版) , 编辑部邮箱 ,2015年06期

【分类号】O484
【下载频次】22

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Broadband shifting luminescence in Cr3+/Yb3+ codoped Y3Al5O12 thin films by pulsed laser deposition

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Broadband shifting luminescence in Cr³⁺/Yb³⁺ codoped Y₃Al₅O₁₂ thin films by pulsed laser deposition