The degradation mechanisms of lamp used BaMgAl10O17: Eu2+,Mn2+ phosphor | Zendy

Meijiao Zhou | Zendy; Zhang Jiachi | Zendy; Yuhua Wang | Zendy

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The degradation mechanisms of lamp used BaMgAl10O17: Eu2+,Mn2+ phosphor

Author(s) -

Meijiao Zhou,

Zhang Jiachi,

Yuhua Wang

Publication year - 2012

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.61.074103

Subject(s) - phosphor , materials science , luminescence , degradation (telecommunications) , ultraviolet , radiation , ion , thermal , metastability , absorption (acoustics) , irradiation , optoelectronics , photochemistry , optics , chemistry , composite material , physics , telecommunications , computer science , organic chemistry , meteorology , nuclear physics

The thermal and the ultraviolet radiation degradation mechanisms of lamp used BaMgAl10O17:Eu2+, Mn2+ phosphor are investigated in a comparative way. Thermal and the ultraviolet radiation treatments can both seriously damage the luminous efficiency of BaMgAl10O17:Eu2+,Mn2+. It is revealed that the thermal degradation is involved in the oxidation and migration of Eu2+ ions. The ultraviolet radiation makes the Eu2+ in metastable state, which weakens the direct absorption of Eu2+ and thus reduces the relative luminescence intensity of BaMgAl10O17:Eu2+,Mn2+.

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