The ultraviolet irradiation degradation of fluorescent lamp used BaMgAl₁₀O₁₇:Eu²⁺,Mn²⁺ phosphor

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• 作者：Jiachi Zhang ; ^{zhangjch@lzu.edu.cn} ; Meijiao Zhou ; Bitao Liu ; Yan Wen ; Yuhua Wang
• 关键词：BaMgAl10O17 ; Eu2+ ; Mn2+ ; Luminescence ; Ultraviolet radiation
• 刊名：Journal of Luminescence
• 出版年：2012
• 期刊代码：54_00222313
• 类别：ch
• 出版时间：August, 2012
• 卷：132
• 期：8
• 页码：1949-1952
• 文件大小：412 K

摘要

The ultraviolet irradiation degradation of lamps using BaMgAl₁₀O₁₇:Eu²⁺,Mn²⁺ phosphor is investigated. The X-ray photoelectron spectra demonstrate that the oxidation of Eu²⁺ is taking place during ultraviolet irradiation in air. The experiment in nitrogen indicates that the oxidation of Eu²⁺ is directly related to the oxygen in air and should be mainly responsible for the degradation of Eu²⁺. It reveals that the Mn²⁺ centers always remain stable during irradiation but its emission is involved in the energy transfer of Eu²⁺鈫扢n²⁺. Thus, the oxidation of Eu²⁺ also leads to the degradation of Mn²⁺.