| Paper Abstract and Keywords |
| Presentation |
2020-01-24 11:05
[Poster Presentation]
Influence of Bi codoping to excitation characteristics in tetragonal Mg2TiO4:Mn4+ deep red phosphors
Motoshi Suhama, Yusuke Ueno, Tadashi Ishigaki, Koutoku Ohmi (Tottori Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (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) |
| (in English) |
Red phosphor / Mg2TiO4:Mn4+ / Tetragonal / Bi3+ codoping / / / / |
| Reference Info. |
ITE Tech. Rep. |
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| Conference Information |
| Committee |
IDY IEICE-EID IEIJ-SSL SID-JC IEE-EDD |
| Conference Date |
2020-01-23 - 2020-01-24 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Tottori Univ |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IEICE-EID |
| Conference Code |
2020-01-EID-IDY-SSL-JC-EDD |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Influence of Bi codoping to excitation characteristics in tetragonal Mg2TiO4:Mn4+ deep red phosphors |
| Sub Title (in English) |
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| Keyword(1) |
Red phosphor |
| Keyword(2) |
Mg2TiO4:Mn4+ |
| Keyword(3) |
Tetragonal |
| Keyword(4) |
Bi3+ codoping |
| Keyword(5) |
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| 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.) |
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| Speaker |
Author-1 |
| Date Time |
2020-01-24 11:05:00 |
| Presentation Time |
5 minutes |
| Registration for |
IEICE-EID |
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| Volume (vol) |
vol.44 |
| Number (no) |
no.1 |
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