Optical properties of trivalent europium doped ZnO:Zn phosphor under indirect excitation of near-UV light | Zendy

Li Chen | Zendy; Jiahua Zhang | Zendy; Xianmin Zhang | Zendy; Feng Liu | Zendy; Xiaojun Wang | Zendy

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Optical properties of trivalent europium doped ZnO:Zn phosphor under indirect excitation of near-UV light

Author(s) -

Li Chen,

Jiahua Zhang,

Xianmin Zhang,

Feng Liu,

Xiaojun Wang

Publication year - 2008

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.16.011795

Subject(s) - phosphor , photoluminescence , europium , materials science , excitation , luminescence , doping , ion , photoluminescence excitation , energy transfer , analytical chemistry (journal) , zinc , optoelectronics , optics , chemistry , molecular physics , physics , organic chemistry , chromatography , quantum mechanics , metallurgy

Eu3+, Li+-codoped ZnO:Zn phosphor with intense Eu3+ emissions upon indirect excitation of near-UV light has been synthesized under reducing condition. Steady-state and time-resolved photoluminescence and diffuse reflectance spectra are measured to investigate properties of the luminescence. The results suggest that there exists prominent energy transfer from ZnO host to Eu3+ ions. A series of energy levels as temporary storage of excitation energy play a crucial role on this energy transfer process. Two kinds of Eu3+ sites in Eu3+, Li+-codoped ZnO:Zn are distinguished based on the emission and excitation spectra in comparison with pure Eu2O3.

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