Presentation 2007/7/19
Research on the lifetime improvement of blue phosphor BAM:Eu^<2+>
Hiroshi KAJIYAMA, Hiroaki TANNO, Giichiro UCHIDA, Tsutae SHINODA,
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Abstract(in English) The effect of plasma treatment on the luminance efficacy of BaMgAl_<10>O_<17>:Eu^<2+> (BAM:Eu^<2+>) is investigated. Among argon-based plasmas with hydrogen or oxygen, it is confirmed that the hydrogen addition to argon plasma supremely improves the lifetime of BAM:Eu^<2+>. The photoluminescence (PL) and thermoluminescence (TL) measurements reveal that the electron traps closely concerned with degradation are reduced by the hydrogen plasma. The PL measurements on BaMgAl_<10>O_<17> strongly suggest that the vacancies and/or defects in BAM crystal are somehow repaired by hydrogen bridge formation.
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Keyword(in English) BAM:Eu^<2+> / hydrogen plasma / lifetime
Paper # EID2007-23
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Committee EID
Conference Date 2007/7/19(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
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Title (in English) Research on the lifetime improvement of blue phosphor BAM:Eu^<2+>
Sub Title (in English)
Keyword(1) BAM:Eu^<2+>
Keyword(2) hydrogen plasma
Keyword(3) lifetime
1st Author's Name Hiroshi KAJIYAMA
1st Author's Affiliation Graduate School of Advanced Sciences of Matter, Hiroshima University()
2nd Author's Name Hiroaki TANNO
2nd Author's Affiliation Graduate School of Advanced Sciences of Matter, Hiroshima University
3rd Author's Name Giichiro UCHIDA
3rd Author's Affiliation Graduate School of Advanced Sciences of Matter, Hiroshima University
4th Author's Name Tsutae SHINODA
4th Author's Affiliation Graduate School of Advanced Sciences of Matter, Hiroshima University
Date 2007/7/19
Paper # EID2007-23
Volume (vol) vol.107
Number (no) 166
Page pp.pp.-
#Pages 4
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