| Presentation | 2015-12-18 Electromagnetic-field analysis simulation for the improvement of light extraction efficiency in III-nitride LEDs Satoshi Ozaki, Atsushi A. Yamaguchi, Hiroki Goto, Akira Usui, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The efficiency droop phenomenon is a big problem for high-brightness white LEDs. It has been pointed out that the problem could be solved by the reduction of threading dislocation density in underlying GaN films (templates or substrates). Nano-channel facet-initiated epitaxial lateral overgrowth (nano-FIELO) technique has been developed as a low-cost fabrication method of such high-quality GaN templates. In this study, we have proposed that the SiO2 mask structures used for selective growth in the nano-FIELO GaN templates can also be useful for improving light extraction efficiency of LEDs, and we demonstratively optimized the mask structures (period, width, and thickness) by electromagnetic-field analysis simulation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Nitride / Semiconductor / LED / Light extraction efficiency / FDTD |
| Paper # | LQE2015-123 |
| Date of Issue | 2015-12-11 (LQE) |
| Conference Information | |
| Committee | LQE |
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| Conference Date | 2015/12/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Hajime Shoji(Sumitomo Electric Industries) |
| Vice Chair | Susumu Noda(Kyoto Univ.) |
| Secretary | Susumu Noda(NICT) |
| Assistant | |
| Paper Information | |
| Registration To | 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) | Electromagnetic-field analysis simulation for the improvement of light extraction efficiency in III-nitride LEDs |
| Sub Title (in English) | |
| Keyword(1) | Nitride |
| Keyword(2) | Semiconductor |
| Keyword(3) | LED |
| Keyword(4) | Light extraction efficiency |
| Keyword(5) | FDTD |
| 1st Author's Name | Satoshi Ozaki |
| 1st Author's Affiliation | Kanazawa Institute of Technology(Kanazawa Inst. Tech.) |
| 2nd Author's Name | Atsushi A. Yamaguchi |
| 2nd Author's Affiliation | Kanazawa Institute of Technology(Kanazawa Inst. Tech.) |
| 3rd Author's Name | Hiroki Goto |
| 3rd Author's Affiliation | Furukawa Co., Ltd.(Furukawa Co., Ltd.) |
| 4th Author's Name | Akira Usui |
| 4th Author's Affiliation | Furukawa Co., Ltd.(Furukawa Co., Ltd.) |
| Date | 2015-12-18 |
| Paper # | LQE2015-123 |
| Volume (vol) | vol.115 |
| Number (no) | LQE-378 |
| Page | pp.pp.1-4(LQE), |
| #Pages | 4 |
| Date of Issue | 2015-12-11 (LQE) |