Using polymerization method, Er3+-doped and Er3+/Yb3+-codoped Y2O3 nanopowders were prepared. Under 975 nm exication, upconversion emissions of the samples had been studied in detail. Strong green upconversion emission was observed in the 0.5 mol%Er3+ -doped Y2O3 nanopowder. Strong green and red up conversion emissions were discovered in the 0.5 mol%Er3+/1mol%Yb3+ -codoped Y2O3 nanopowder. However, strong red upconversion emission was found in the 0.5 mol%Er3+/5mol%Yb3+ -codoped Y2O3 nanopowder. The prepared method of luminescent nanopowders will be helpful to developing luminescent technology.
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Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R ChinaGuangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
Wu, Qibai
Lin, Shaoteng
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Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R ChinaGuangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
Lin, Shaoteng
Xie, Zhongxiang
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Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R ChinaGuangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
Xie, Zhongxiang
Zhang, Liqing
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Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R ChinaGuangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
Zhang, Liqing
Qian, Yannan
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Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R ChinaGuangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
Qian, Yannan
Wang, Yaodong
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Newcastle Univ, Sir Joseph Swan Ctr Energy Res, Newcastle Upon Tyne NE1 7RU, Tyne & Wear, EnglandGuangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
Wang, Yaodong
Zhang, Haiyan
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Guangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R ChinaGuangdong Univ Technol, Sch Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China