| Presentation | 2020-01-24 [Poster Presentation] Influence of Bi codoping to excitation characteristics in tetragonal Mg2TiO4:Mn4+ deep red phosphors Motoshi Suhama, Yusuke Ueno, Tadashi Ishigaki, Koutoku Ohmi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this study, the Bi3+ codoping to Mg2TiO4:Mn4+ has been attempted. In addition, a low temperature annealing at 625°C for 24 hours is also performed to cause a phase transition from cubic to tetragonal, resulting in further improvement of the photoluminescence (PL) intensity. The effects of the Bi-codoping and the low-temperature-annealing to light absorption and PL excitation has investigated. The PL intensity of the synthesized tetragonal Mg1.994Ti0.997O4: 0.3% Mn4+, 0.3% Bi3+, 0.3% Li+ is increased twice compared with the cubic Mg2TiO4:Mn4+. The light absorption especially between near-uv and visible wavelength region is also increased by Bi3+-doping, which gives rise to effectively improve the Mn4+ PL intensity. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Red phosphor / Mg2TiO4:Mn4+ / Tetragonal / Bi3+ codoping |
| Paper # | EID2019-15 |
| Date of Issue | 2020-01-16 (EID) |
| Conference Information | |
| Committee | EID / ITE-IDY / IEIJ-SSL / SID-JC / IEE-EDD |
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| 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 |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Influence of Bi codoping to excitation characteristics in tetragonal Mg2TiO4:Mn4+ deep red phosphors |
| Sub Title (in English) | |
| Keyword(1) | Red phosphor |
| Keyword(2) | Mg2TiO4:Mn4+ |
| Keyword(3) | Tetragonal |
| Keyword(4) | Bi3+ codoping |
| 1st Author's Name | Motoshi Suhama |
| 1st Author's Affiliation | Tottori University(Tottori Univ.) |
| 2nd Author's Name | Yusuke Ueno |
| 2nd Author's Affiliation | Tottori University(Tottori Univ.) |
| 3rd Author's Name | Tadashi Ishigaki |
| 3rd Author's Affiliation | Tottori University(Tottori Univ.) |
| 4th Author's Name | Koutoku Ohmi |
| 4th Author's Affiliation | Tottori University(Tottori Univ.) |
| Date | 2020-01-24 |
| Paper # | EID2019-15 |
| Volume (vol) | vol.119 |
| Number (no) | EID-385 |
| Page | pp.pp.125-128(EID), |
| #Pages | 4 |
| Date of Issue | 2020-01-16 (EID) |