Presentation 2018-01-25
Luminescent properties of ultraviolet emitting zinc aluminate alloy phosphor
Taiga Matsuura, Hiroko Kominami, Youichiro Nakanishi, Kazuhiko Hara,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Zn(Al1-xGax)2O4 phosphor for applications as a light source in sterilization and skin treatment have been investigated. The goal is to control the emitting wavelength by replacing the Al site of zinc aluminate having a spinel structure with Ga. Zn(Al1-xGax)2O4 phosphor were prepared by a solid phase synthesis method, and their crystal structures and luminescent properties were evaluated. From the measurement of X-ray diffraction, a single phase formation was confirmed in the sample fired at 1300 oC, and it was obtained that the diffraction peak shifted to the lower angle side as the Ga ratio increased. From cathodoluminescent properties, ultraviolet emission around 250 nm of ZnAl2O4 was obtained, and the emission wavelength was shifted to longer wavelength as the Ga ratio increased. It was shown that the emission spectrum became narrower due to solid solution formation and that the emission peak could be shifted with Ga ratio.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Ultraviolet emitting / ZnAl2O4 / ZnGa2O4 / Alloy / Phosphor / Electron beam excitation
Paper # EID2017-33
Date of Issue 2018-01-18 (EID)

Conference Information
Conference Date 2018/1/25(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Shizuoka Univ., Hamamatsu
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yuko Kominami(Shizuoka Univ.) / Yoshihide Fujisaki(NHK)
Vice Chair Mutsumi Kimura(Ryukoku Univ.) / Rumiko Yamaguchi(Akita Univ.) / Munehiro Kimura(Nagaoka Univ. of Tech.)
Secretary Mutsumi Kimura(NTT) / Rumiko Yamaguchi(Tokyo Inst. of Tech.) / Munehiro Kimura(Shizuoka Univ.) / (Tohoku Univ.)
Assistant Hiroyuki Nitta(Japan Display) / Mitsuru Nakata(NHK) / Ryosuke Nonaka(Toshiba) / Takeshi Okuno(Huawei) / Tomokazu Shiga(Univ. of Electro-Comm.)

Paper Information
Registration To Technical Committee on Electronic Information Displays / Technical Group on Information Display / Division of Solid State Light Sources / Society for Information Display Japan Chapter / Technical Meeting on Electron Devices
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Luminescent properties of ultraviolet emitting zinc aluminate alloy phosphor
Sub Title (in English)
Keyword(1) Ultraviolet emitting
Keyword(2) ZnAl2O4
Keyword(3) ZnGa2O4
Keyword(4) Alloy
Keyword(5) Phosphor
Keyword(6) Electron beam excitation
1st Author's Name Taiga Matsuura
1st Author's Affiliation Shizuoka University(Shizuoka Univ.)
2nd Author's Name Hiroko Kominami
2nd Author's Affiliation Shizuoka University(Shizuoka Univ.)
3rd Author's Name Youichiro Nakanishi
3rd Author's Affiliation Shizuoka University(Shizuoka Univ.)
4th Author's Name Kazuhiko Hara
4th Author's Affiliation Shizuoka University(Shizuoka Univ.)
Date 2018-01-25
Paper # EID2017-33
Volume (vol) vol.117
Number (no) EID-411
Page pp.pp.13-16(EID),
#Pages 4
Date of Issue 2018-01-18 (EID)