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| ファイル | 記述 | サイズ | フォーマット | |
|---|---|---|---|---|
| PhysRevB.80.075205.pdf | 207.74 kB | Adobe PDF | 見る/開く |
| タイトル: | Composition dependent dynamics of biexciton localization in AlxGa1-xN mixed crystals |
| 著者: | Hirano, Daisuke Tayagaki, Takeshi  Yamada, Yoichi Kanemitsu, Yoshihiko   https://orcid.org/0000-0002-0788-131X (unconfirmed) |
| 著者名の別形: | 金光, 義彦 |
| キーワード: | aluminium compounds biexcitons binding energy gallium compounds III-V semiconductors photoluminescence spectral line breadth time resolved spectra wide band gap semiconductors |
| 発行日: | Aug-2009 |
| 出版者: | American Institute of Physics |
| 誌名: | Physical Review B |
| 巻: | 80 |
| 号: | 7 |
| 論文番号: | 075205 |
| 抄録: | We report the localization-dependent dynamics of biexcitons in AlxGa1−xN mixed crystals under exciton resonant excitation at low temperatures. After intense laser excitation, biexcitons rapidly localize into the band-tail states. The formation time of localized biexcitons becomes shorter with increasing Al composition. Both the inhomogeneous linewidth and the binding energy of biexcitons increase with the inhomogeneous linewidth of excitons. The biexciton binding energy is enhanced by the restriction of exciton motion to disordered potentials and the dynamics of stable biexcitons determines the optical spectrum in mixed crystals. |
| 著作権等: | c 2009 The American Physical Society |
| URI: | http://hdl.handle.net/2433/87340 |
| DOI(出版社版): | 10.1103/PhysRevB.80.075205 |
| 出現コレクション: | 学術雑誌掲載論文等 |
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