| Paper Abstract and Keywords |
| Presentation |
2023-01-27 14:25
Improvement of Photoluminescent Characteristics by Post Annealing in O3 atmosphere for Y4Si2O7N2:Eu3+ Red Phosphors
Rentaro Furuie, Hiroki Shinoda (TU), Takashi Kunimoto (Tokushima Bunri), Koutoku Ohmi (TU) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
A low-temperature post-annealing in O3 atmosphere has been attempted to enhance the Eu3+ activation for Y4Si2O7N2:Eu3+ red phosphors, which were prepared by the solid-state reaction in NH3. By the O3 annealing, the photoluminescence (PL) excitation bands due to both Eu3+ charge transfer state (CTS) and 4f-4f direct transition have been increased by about 40%, compared to the unannealed samples. It has been found that the proper anneal temperature is about 435°C, at which the highest photoluminescence (PL) intensity is obtained under the CTS excitation. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Y4Si2O7N2 / CTS / Red phosphor / O3 annealing / White LED / / / |
| Reference Info. |
ITE Tech. Rep., vol. 47, no. 1, IDY2023-9, pp. 33-36, Jan. 2023. |
| Paper # |
IDY2023-9 |
| Date of Issue |
2023-01-19 (IDY) |
| ISSN |
Print edition: ISSN 1342-6893 Online edition: ISSN 2424-1970 |
| Download PDF |
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| Conference Information |
| Committee |
IDY IEIJ-SSL IEICE-EID SID-JC IEE-EDD |
| Conference Date |
2023-01-26 - 2023-01-27 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
IDY |
| Conference Code |
2023-01-IDY-SSL-EID-JC-EDD |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Improvement of Photoluminescent Characteristics by Post Annealing in O3 atmosphere for Y4Si2O7N2:Eu3+ Red Phosphors |
| Sub Title (in English) |
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| Keyword(1) |
Y4Si2O7N2 |
| Keyword(2) |
CTS |
| Keyword(3) |
Red phosphor |
| Keyword(4) |
O3 annealing |
| Keyword(5) |
White LED |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Rentaro Furuie |
| 1st Author's Affiliation |
Tottori University (TU) |
| 2nd Author's Name |
Hiroki Shinoda |
| 2nd Author's Affiliation |
Tottori University (TU) |
| 3rd Author's Name |
Takashi Kunimoto |
| 3rd Author's Affiliation |
Tokushima Bunri University (Tokushima Bunri) |
| 4th Author's Name |
Koutoku Ohmi |
| 4th Author's Affiliation |
Tottori University (TU) |
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| Speaker |
Author-1 |
| Date Time |
2023-01-27 14:25:00 |
| Presentation Time |
10 minutes |
| Registration for |
IDY |
| Paper # |
IDY2023-9 |
| Volume (vol) |
vol.47 |
| Number (no) |
no.1 |
| Page |
pp.33-36 |
| #Pages |
4 |
| Date of Issue |
2023-01-19 (IDY) |