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Energy transfer and upconversion luminescence of Tm3+/Yb3+ co-doped lanthanum-zinc-lead-tellurite glasses

Zhang Xiang-Hua Jin Zhe Nie Qiu-Hua Xu Tie-Feng Dai Shi-Xun Shen Xiang

Energy transfer and upconversion luminescence of Tm3+/Yb3+ co-doped lanthanum-zinc-lead-tellurite glasses

Zhang Xiang-Hua, Jin Zhe, Nie Qiu-Hua, Xu Tie-Feng, Dai Shi-Xun, Shen Xiang
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  • Received Date:  29 June 2006
  • Accepted Date:  26 December 2006
  • Published Online:  20 April 2007

Energy transfer and upconversion luminescence of Tm3+/Yb3+ co-doped lanthanum-zinc-lead-tellurite glasses

  • 1. (1)雷恩第一大学玻璃与陶瓷实验室,法国雷恩 35042; (2)宁波大学信息科学与工程学院,宁波 315211

Abstract: Tm3+/Yb3+ codoped lanthanum-zinc-lead-tellurite glasses were prepared. Infrared spectrum and upconversion luminescence spectra under 980 nm excitation were studied, and the upconversion luminescence mechanisms were discussed. Rate equations based on energy levels of Tm3+ and Yb3+ and the upconversion mechanisms were developed, and population density in different levels and coefficients of the energy transfer rate Cbi(i=0, 1,3) between Tm3+ and Yb3+ were obtained. The results indicated that, with increasing PbO content in the glass, the energy transfer between Yb3+:2F5/2 and Tm3+:3H4 was intensified, and upconversion luminescence intensity of blue emission was enhanced significantly.

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