[Concentration dependence of luminescence under different excitation wavelength in Y2O2S:Sm3+ phosphor]

[Concentration dependence of luminescence under different excitation wavelength in Y2O2S:Sm3+ phosphor] Research Abstract Details 

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[Concentration dependence of luminescence under different excitation wavelength in Y2O2S:Sm3+ phosphor] Abstract Text:

Bing-fu Lei,Ying-liang Liu,Gong-ben Tang,Ze-ren Ye,Chun-shan Shi,

The concentration dependence of luminescence under different excitations in Y2O2S:Sm3+ phosphor has been studied. The optimum activator concentration was found to be a function of the number of excited activator ions as well as the excitation wavelength. The concentration dependence curve of Y2O2S:Sm3+ phosphor under 413 nm excitation was different from the curve obtained with 263 nm excitation. For excitation radiation having longer wavelength (413 nm), the concentration quenching of Y2O2S:Sm3+ phosphor occurred at about 2%, which is ten times the result with shorter wavelength (263 nm) excitation (-0.2%). Fitting the concentration dependence curve and the result shows that the cross-relaxation caused by the dipole-quadrupole interaction of neighboring Sm3+ ions results in the concentration quenching.

[Concentration dependence of luminescence under different excitation wavelength in Y2O2S:Sm3+ phosphor] Publishing Authors By Initials

BF Lei,YL Liu,GB Tang,ZR Ye,CS Shi,

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[Concentration dependence of luminescence under different excitation wavelength in Y2O2S:Sm3+ phosphor] 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: 1302-5

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ISSN: 1000-0593

DAY: 14

MONTH: Nov

YEAR: 2004

[Concentration dependence of luminescence under different excitation wavelength in Y2O2S:Sm3+ phosphor] Information

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LANGUAGE: chi

NlmUniqueID: 9424805

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AFFILIATION: Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China.

Country: China

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MEDLINETA: Guang Pu Xue Yu Guang Pu Fen X

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