Presentation 2020-01-23
[Poster Presentation] Investigation of correlation between PL temperature characteristics and charge transfer state (CTS) in Eu3+ activated red multi-anion compound phosphors
Misa Kawashima, Ken Kinoshita, Takuya Sohma, Kodai Nakamoto, Tadashi Ishigaki, Takashi Kunimoto, Koutoku Ohmi,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) Eu3+ activated red multi-anion compound phosphors, such as Y4Si2O7N2:Eu3+ (YSON), La2O3:Eu3+ (LO) and LaOF:Eu3+ (LOF), have been synthesized. Photoluminescence (PL) temperature dependences of these phosphors have been measured. From the results, the activation energy ΔE has been estimated to be 0.08 eV for YSON, 0.12 eV for LO, 0.11 eV for LOF. It is considered that the ΔE value corresponds to the charge transfer state (CTS) energy from 4f ground state, that is, 3.66 eV for YSON, 4.37 eV for LO, 4.53 eV for LOF.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) red phosphor / white LED / Eu3+ / CTS excitation band / PL temperature characteristics / activation energy
Paper # EID2019-7
Date of Issue 2020-01-16 (EID)

Conference Information
Committee EID / ITE-IDY / IEIJ-SSL / SID-JC / IEE-EDD
Conference Date 2020/1/23(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tottori Univ.
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Rumiko Yamaguchi(Akita Univ.) / Munehiro Kimura(Nagaoka Univ. of Tech.)
Vice Chair Masahiro Yamaguchi(Tokyo Inst. of Tech.) / Toshimitsu Tsuzuki(NHK)
Secretary Masahiro Yamaguchi(NTT) / Toshimitsu Tsuzuki(NHK) / (Shizuoka Univ.) / (Tohoku Univ.)
Assistant Mutsumi Kimura(Ryukoku Univ.) / Tomokazu Shiga(Univ. of Electro-Comm.) / Takeshi Okuno(Huawei) / Hiroko Kominami(Shizuoka Univ.) / Masanobu Mizusaki(SHARP) / Masayuki Kanbara(NAIST) / Takuya Hasegawa(Koch Univ.)

Paper Information
Registration To Technical Committee on Electronic Information Displays / Technical Group on Information Display / * / Society for Informtion Display Japan Chapter / Technical Group on Electron Devices
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Investigation of correlation between PL temperature characteristics and charge transfer state (CTS) in Eu3+ activated red multi-anion compound phosphors
Sub Title (in English)
Keyword(1) red phosphor
Keyword(2) white LED
Keyword(3) Eu3+
Keyword(4) CTS excitation band
Keyword(5) PL temperature characteristics
Keyword(6) activation energy
1st Author's Name Misa Kawashima
1st Author's Affiliation Tottori University(Tottori Univ.)
2nd Author's Name Ken Kinoshita
2nd Author's Affiliation Tottori University(Tottori Univ.)
3rd Author's Name Takuya Sohma
3rd Author's Affiliation Tottori University(Tottori Univ.)
4th Author's Name Kodai Nakamoto
4th Author's Affiliation Tottori University(Tottori Univ.)
5th Author's Name Tadashi Ishigaki
5th Author's Affiliation Tottori University(Tottori Univ.)
6th Author's Name Takashi Kunimoto
6th Author's Affiliation Tokushima Bunri University(Tokushima Bunri Univ.)
7th Author's Name Koutoku Ohmi
7th Author's Affiliation Tottori University(Tottori Univ.)
Date 2020-01-23
Paper # EID2019-7
Volume (vol) vol.119
Number (no) EID-385
Page pp.pp.37-40(EID),
#Pages 4
Date of Issue 2020-01-16 (EID)