[Luminescence properties and up-conversion mechanism of Er3+ -Yb3+ -Tm3+ co-doped CdF2: PbF2-based glass]

[Luminescence properties and up-conversion mechanism of Er3+ -Yb3+ -Tm3+ co-doped CdF2: PbF2-based glass] Research Abstract Details 

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[Luminescence properties and up-conversion mechanism of Er3+ -Yb3+ -Tm3+ co-doped CdF2: PbF2-based glass] Abstract Text:

Li-wen Yang,Zheng-wei Liu,Si-guo Xiao,

Under 980 nm excitation, we obtained five intense up-conversion luminescence bands in Er3+ -Yb3+ -Tm3+ co-doped CdF2: PbF2-based glass as follows: infrared (800 nm), red (645 nm), green (545 nm and 525 nm), blue (480 nm ) and violet (407 nm) up-conversion luminescence. With the addition of Tm3+ , the intensity of 480 nm blue luminescence increased notably compared with that of co-doped Yb3+ -Er3+ sample, which attributed to Tm3+ special energy level structure; logI-logP plot of the luminescence intensity versus pump power shows that 480 nm luminescence emission is a two-photon excitation process induced by the cooperative up-conversion between two Yb3+ ions and the slope of logI-logP plot decreases gradually with increasing pump power and shows a tendency to bend down. The up-conversion mechanism is analyzed in detail under 980 nm semiconductor laser excitation; the dependence of 480 nm up-conversion luminescence intensity on the pump power under the steady states is discussed by using rate equation and the results agree well with the experiments.

[Luminescence properties and up-conversion mechanism of Er3+ -Yb3+ -Tm3+ co-doped CdF2: PbF2-based glass] Publishing Authors By Initials

LW Yang,ZW Liu,SG Xiao,

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[Luminescence properties and up-conversion mechanism of Er3+ -Yb3+ -Tm3+ co-doped CdF2: PbF2-based glass] Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Guang pu xue yu guang pu fen xi = Guang pu

VOLUME: 24

Page Numbers: 779-83

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ISSN: 1000-0593

DAY: 15

MONTH: Jul

YEAR: 2004

[Luminescence properties and up-conversion mechanism of Er3+ -Yb3+ -Tm3+ co-doped CdF2: PbF2-based glass] Information

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LANGUAGE: chi

NlmUniqueID: 9424805

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AFFILIATION: Faculty of Material and Photo-electronic Physics, Xiangtan University, Xiangtan 411105, China.

Country: China

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MEDLINETA: Guang Pu Xue Yu Guang Pu Fen X

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