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16.4: Luminance Degradation of Blue Phosphor BaMgAl 10 O 17 : Eu for PDP
Author(s) -
Ushirozawa Mizumoto
Publication year - 2000
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.1832923
Subject(s) - phosphor , luminance , degradation (telecommunications) , europium , materials science , irradiation , chemistry , analytical chemistry (journal) , luminescence , optoelectronics , optics , computer science , telecommunications , physics , environmental chemistry , nuclear physics
Luminance degradation of blue‐emitting phosphor BaMgAl 10 O 17 : Eu caused by the PDP making process and VUV irradiation was studied. The degradation by panel making process was investigated with samples prepared by several panel makers. The least degraded sample maintained 83% luminance after the process. The degradation by VUV was compared for the phosphor degraded by the process and initial phosphor. The luminance of the degraded one by process degraded lesser than non‐processed one. Chemical analysis indicated that the degradation was caused by the change in valence of europium in phosphor surface.