Journal of Materials Research

Articles

Tunable luminescence from Sm3+, Ce3+ codoped Al2O3–La2O3–SiO2 glasses for white light emission

Hucheng Yang, G. Lakshminarayana, Yu Teng, Shifeng Zhou and Jianrong Qiua1 c1

a1 State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China

Abstract

Sm3+, Ce3+ codoped Al2O3–La2O3–SiO2 glasses were prepared and their luminescence properties were characterized. Blue-cyan to orange-red tunable luminescence was observed from these glasses with different excitation wavelengths ranging from 385 to 410 nm. White light emission with internal luminescence efficiency 42% has been observed using commercially available purple light-emitting-diode excitation. The energy transfer between Ce3+ and Sm3+ has also been investigated from fluorescence decay curves and spectral properties.

(Received June 16 2008)

(Accepted January 06 2009)

Key Words:

  • Compound;
  • Lanthanide;
  • Luminescence

Correspondence:

c1 Address all correspondence to this author. e-mail: qjr@zju.edu.cn

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