| タイトル | Nanocrystalline CuBr films exhibiting ～104 times higher room-temperature free-exciton PL efficiency than conventional CuBr films |
| 本文（外部サイト） | http://repo.flib.u-fukui.ac.jp/dspace/bitstream/10098/1239/1/%e9%81%a0%e8%b5%a48%e5%b7%bb145-155.pdf |
| 参考URL | http://hdl.handle.net/10098/1239 |
| 著者（英） | KONDO, S; SAITO, T |
| 発行日 | 2007-07 |
| 刊行物名 | 遠赤外領域開発研究 |
| 巻 | 8 |
| 開始ページ | 145 |
| 終了ページ | 155 |
| 刊行年月日 | 2007-07 |
| 言語 | eng |
| 内容記述 | High-quality nanocrystalline CuBr films are fabricated by film-substrate chemical reaction of CuCl on KBr. The films exhibit more than ～104 times higher free-exciton photoluminescence (PL) efficiency at room temperature than conventional CuBr films. The room-temperature PL efficiency exceeds that of conventional CuCl films by a factor of ～103 and even the cryogenic-temperature free-exciton PL efficiency of the same films by a factor of ～102, despite the general recognition that the free-exciton PL efficiency of CuBr is much weaker than that of CuCl. The extreme PL efficiency of the CuBr is considered to be mediated by the high-quality KBr-crystal surroundings, into which and out of which Cu+ and K+ ions migrate, respectively, during the film-substrate chemical reaction, thus generating high-quality CuBr nanocrystallites in the surroundings. |
| 資料種別 | Research Paper |
| URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/614115 |
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