| Presentation | 2011-01-28 Photoluminescence Characterization of AlGaN-Based Crystals for Deep Ultraviolet Region Kouhei IGARASHI, Ryo ISHIOKA, Yusuke TSUKADA, Takeshi FUKUDA, Zentaro HONDA, Hideki HIRAYAMA, Norihiko KAMATA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In order to improve the quality of AlGaN-based crystals for deep-UV light emission, we studied photoluminescence (PL) of four MOCVD-grown AlGaN quantum wells from standpoints of growth temperature and In incorporation. A growth at 880℃ with In flow was shown to be best among them based on the comparative measurements on PL spectra, temperature and excitation density dependence. With increasing excitation density, a saturation of nonradiative recombination centers takes place and increases internal quantum efficiency. A simplified rate-equation analysis yielded weak carrier density dependence of nonradiative recombination constant for each sample. Detailed optimization of growth condition with a minute In incorporation is promising for improving the internal quantum efficiency. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | AlGaN / Deep Ultraviolet Emission / Quantum well / Nonradiative recombination center |
| Paper # | EID2010-31 |
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| Conference Information | |
| Committee | EID |
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| Conference Date | 2011/1/21(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electronic Information Displays (EID) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Photoluminescence Characterization of AlGaN-Based Crystals for Deep Ultraviolet Region |
| Sub Title (in English) | |
| Keyword(1) | AlGaN |
| Keyword(2) | Deep Ultraviolet Emission |
| Keyword(3) | Quantum well |
| Keyword(4) | Nonradiative recombination center |
| 1st Author's Name | Kouhei IGARASHI |
| 1st Author's Affiliation | Graduate School of Science and Engineering, Saitama University() |
| 2nd Author's Name | Ryo ISHIOKA |
| 2nd Author's Affiliation | Graduate School of Science and Engineering, Saitama University |
| 3rd Author's Name | Yusuke TSUKADA |
| 3rd Author's Affiliation | Graduate School of Science and Engineering, Saitama University:RIKEN |
| 4th Author's Name | Takeshi FUKUDA |
| 4th Author's Affiliation | Graduate School of Science and Engineering, Saitama University |
| 5th Author's Name | Zentaro HONDA |
| 5th Author's Affiliation | Graduate School of Science and Engineering, Saitama University |
| 6th Author's Name | Hideki HIRAYAMA |
| 6th Author's Affiliation | Graduate School of Science and Engineering, Saitama University:RIKEN |
| 7th Author's Name | Norihiko KAMATA |
| 7th Author's Affiliation | Graduate School of Science and Engineering, Saitama University |
| Date | 2011-01-28 |
| Paper # | EID2010-31 |
| Volume (vol) | vol.110 |
| Number (no) | 404 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |