| Presentation | 2021-11-25 Theoretical modeling of temperature-dependent PL spectra in InGaN quantum wells Shunya Hakamata, Takashi Fujita, Ryuichi Watanabe, Atsushi A Yamaguchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | InGaN quantum-well (QW) light-emitting devices can cover the entire visible spectrum in principle, by changing the In composition, but there is a problem that the efficiency drops in longer wavelength region. In order to solve this problem, it is important to understand the electronic structures and carrier dynamics in InGaN QWs. In this study, we have tried to reproduce the experimental results of temperature-dependent PL spectra for a series of InGaN-QW samples with different In compositions by using a single theoretical model. We have newly constructed a theoretical model that takes into account the band gap fluctuation due to the In composition fluctuation and the carrier localization, and have fitted it to the experimental results. As a result, the PL spectra have been fitted in the whole temperature range and the values of the parameters were reasonable. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | InGaN quantum well / PL spectrum / temperature dependence / alloy fluctuation |
| Paper # | ED2021-23,CPM2021-57,LQE2021-35 |
| Date of Issue | 2021-11-18 (ED, CPM, LQE) |
| Conference Information | |
| Committee | ED / CPM / LQE |
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| Conference Date | 2021/11/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hiroki Fujishiro(Tokyo Univ. of Science) / Yuichi Nakamura(Toyohashi Univ. of Tech.) / Toshitada Umezawa(NICT) |
| Vice Chair | Seiya Sakai(Hokkaido Univ.) / Hideki Nakazawa(Hirosaki Univ.) / Junichi Takahara(Osaka Univ.) |
| Secretary | Seiya Sakai(Fjitsu Lab.) / Hideki Nakazawa(NTT) / Junichi Takahara(Ehime Univ.) |
| Assistant | Ryota Isonoi(SCIOCS) / Yoshitugu Yamamoto(Mitsubishi Electric) / Yasuo Kimura(Tokyo Univ. of Tech.) / Fumihiko Hirose(Yamagata Univ.) / Noriko Bamba(Shinshu Univ.) / Shinsuke Tanaka(Fujitsu) / Nobuhiko Nishiyama(Tokyo Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Electron Devices / Technical Committee on Component Parts and Materials / Technical Committee on Lasers and Quantum Electronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Theoretical modeling of temperature-dependent PL spectra in InGaN quantum wells |
| Sub Title (in English) | |
| Keyword(1) | InGaN quantum well |
| Keyword(2) | PL spectrum |
| Keyword(3) | temperature dependence |
| Keyword(4) | alloy fluctuation |
| 1st Author's Name | Shunya Hakamata |
| 1st Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 2nd Author's Name | Takashi Fujita |
| 2nd Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 3rd Author's Name | Ryuichi Watanabe |
| 3rd Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| 4th Author's Name | Atsushi A Yamaguchi |
| 4th Author's Affiliation | Kanazawa Institute of Technology(KIT) |
| Date | 2021-11-25 |
| Paper # | ED2021-23,CPM2021-57,LQE2021-35 |
| Volume (vol) | vol.121 |
| Number (no) | ED-259,CPM-260,LQE-261 |
| Page | pp.pp.41-44(ED), pp.41-44(CPM), pp.41-44(LQE), |
| #Pages | 4 |
| Date of Issue | 2021-11-18 (ED, CPM, LQE) |