| Presentation | 2007-10-11 340nm-band high-power UV-LED using p-type InAlGaN layers and high-quality AlN buffer Sachie FUJIKAWA, Takayoshi TAKANO, Yukihiro KONDO, Hideki HIRAYAMA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | 230-350nm-band high-efficiency ultraviolet (UV) light-emitting diodes (LEDs) or laser diodes (LDs) are very attractive for the application to white lighting, medical fields, etc. In this study, we realized high-power operation of quaternary InAlGaN-based UV-LEDs with p-type InAlGaN layers fabricated on high-quality AlN buffer on sapphire. We revealed that Mg-doped InAlGaN layer is superior to Mg-doped AlGaN layer for use as p-type layers of UV-LEDs. We obtained output power of 8.4mW and the external quantum efficiency (EQE) of 0.9% from 346 nm InAlGaN-based UV-LED under room temperature CW operation by optimizing electron injection into QWs and by improving the crystal quality of AlN/AlGaN template. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | quaternary InAlGaN / UV-LEDs / p-InAlGaN / AlN / MOCVD |
| Paper # | ED2007-161,CPM2007-87,LQE2007-62 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2007/10/4(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 340nm-band high-power UV-LED using p-type InAlGaN layers and high-quality AlN buffer |
| Sub Title (in English) | |
| Keyword(1) | quaternary InAlGaN |
| Keyword(2) | UV-LEDs |
| Keyword(3) | p-InAlGaN |
| Keyword(4) | AlN |
| Keyword(5) | MOCVD |
| 1st Author's Name | Sachie FUJIKAWA |
| 1st Author's Affiliation | RIKEN() |
| 2nd Author's Name | Takayoshi TAKANO |
| 2nd Author's Affiliation | Matsushita Electric Works, Ltd. |
| 3rd Author's Name | Yukihiro KONDO |
| 3rd Author's Affiliation | Matsushita Electric Works, Ltd. |
| 4th Author's Name | Hideki HIRAYAMA |
| 4th Author's Affiliation | RIKEN |
| Date | 2007-10-11 |
| Paper # | ED2007-161,CPM2007-87,LQE2007-62 |
| Volume (vol) | vol.107 |
| Number (no) | 253 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |