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

Published online by Cambridge University Press:  31 January 2011

Hucheng Yang ,
G. Lakshminarayana ,
Yu Teng ,
Shifeng Zhou  and
Jianrong Qiu
Jianrong Qiu*
Affiliation:
State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, China
*
a) Address all correspondence to this author. e-mail: [email protected]
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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.

Keywords

CompoundLanthanideLuminescence
Type
Articles
Information
Journal of Materials Research , Volume 24 , Issue 5 , May 2009 , pp. 1730 - 1734
Copyright
Copyright © Materials Research Society 2009

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