ダウンロード数: 329
このアイテムのファイル:
ファイル | 記述 | サイズ | フォーマット | |
---|---|---|---|---|
ncomms11962.pdf | 1.01 MB | Adobe PDF | 見る/開く |
タイトル: | Discovery of earth-abundant nitride semiconductors by computational screening and high-pressure synthesis. |
著者: | Hinuma, Yoyo Hatakeyama, Taisuke Kumagai, Yu Burton, Lee A Sato, Hikaru Muraba, Yoshinori Iimura, Soshi Hiramatsu, Hidenori Tanaka, Isao https://orcid.org/0000-0002-4616-118X (unconfirmed) Hosono, Hideo Oba, Fumiyasu |
著者名の別形: | 日沼, 洋陽 畠山, 泰典 熊谷, 悠 バートン, リー 佐藤, 光 村場, 善行 飯村, 壮史 平松, 秀典 田中, 功 細野, 秀雄 大場, 史康 |
発行日: | 21-Jun-2016 |
出版者: | Nature Publishing Group |
誌名: | Nature communications |
巻: | 7 |
論文番号: | 11962 |
抄録: | Nitride semiconductors are attractive because they can be environmentally benign, comprised of abundant elements and possess favourable electronic properties. However, those currently commercialized are mostly limited to gallium nitride and its alloys, despite the rich composition space of nitrides. Here we report the screening of ternary zinc nitride semiconductors using first-principles calculations of electronic structure, stability and dopability. This approach identifies as-yet-unreported CaZn[2]N[2] that has earth-abundant components, smaller carrier effective masses than gallium nitride and a tunable direct bandgap suited for light emission and harvesting. High-pressure synthesis realizes this phase, verifying the predicted crystal structure and band-edge red photoluminescence. In total, we propose 21 promising systems, including Ca[2]ZnN[2], Ba[2]ZnN[2] and Zn[2]PN[3], which have not been reported as semiconductors previously. Given the variety in bandgaps of the identified compounds, the present study expands the potential suitability of nitride semiconductors for a broader range of electronic, optoelectronic and photovoltaic applications. |
記述: | 希少元素を使わずに赤く光る新窒化物半導体を発見-マテリアルズ・インフォマティクスと実験の連携による成果-. 京都大学プレスリリース. 2016-06-28. |
著作権等: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
URI: | http://hdl.handle.net/2433/215700 |
DOI(出版社版): | 10.1038/ncomms11962 |
PubMed ID: | 27325228 |
関連リンク: | https://www.kyoto-u.ac.jp/ja/research-news/2016-06-28 |
出現コレクション: | 学術雑誌掲載論文等 |
このリポジトリに保管されているアイテムはすべて著作権により保護されています。