The Thermal Stability and Photoluminescence Degradation of   Mn   2+  in Fluorescent Lamp used   BaMgAl   10   O   17 :  Eu   2+ ,  Mn   2+  Phosphor | Zendy

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

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The Thermal Stability and Photoluminescence Degradation of Mn 2+ in Fluorescent Lamp used BaMgAl 10 O 17 : Eu 2+ , Mn 2+ Phosphor

Author(s) -

Zhang Jiachi,

Zhou Meijiao,

Liu Bitao,

Wang Yuhua

Publication year - 2012

Publication title -

international journal of applied ceramic technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.4

H-Index - 57

eISSN - 1744-7402

pISSN - 1546-542X

DOI - 10.1111/j.1744-7402.2012.02809.x

Subject(s) - photoluminescence , phosphor , manganese , degradation (telecommunications) , impurity , thermal stability , fluorescence , materials science , energy transfer , valence (chemistry) , analytical chemistry (journal) , nuclear chemistry , chemistry , optoelectronics , physics , metallurgy , telecommunications , organic chemistry , chromatography , computer science , quantum mechanics , molecular physics

The thermal stability and photoluminescence degradation of Mn 2+ in fluorescent lamps used BaMgAl 10 O 17 : Eu 2+ , Mn 2+ phosphor are investigated. The detection of impurity containing manganese with high valence demonstrates the oxidation of Mn 2+ during baking process at 700°C and it partly leads to emission degradation of Mn 2+ . The emission of Mn 2+ mainly originates from the energy transfer of Eu 2+ → Mn 2+ . The oxidation of Eu 2+ decrease the amount of Eu 2+ centers and thus finally causes the degradation of Mn 2+ . Some traps are revealed to be induced during baking process and it further weakens energy transfer efficiency of Eu 2+ → Mn 2+ and decreases the emission of Mn 2+ .

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