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Location of quantum dots identified by microscopic photoluminescence changes during nanoprobe indentation with a horizontal scan
https://sucra.repo.nii.ac.jp/records/13205
https://sucra.repo.nii.ac.jp/records/13205a430e5d6-2db1-42ae-bf73-c129b844f631
名前 / ファイル | ライセンス | アクション |
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A1002555.pdf (495.5 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2008-04-01 | |||||
タイトル | ||||||
タイトル | Location of quantum dots identified by microscopic photoluminescence changes during nanoprobe indentation with a horizontal scan | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Liang, Yuan-Hua
× Liang, Yuan-Hua× Ohashi, Masane× 荒居, 善雄× Ozasa, Kazunari |
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著者 ローマ字 | ||||||
Liang, Yuan-Hua | ||||||
著者 ローマ字 | ||||||
Ohashi, Masane | ||||||
著者 ローマ字 | ||||||
Arai, Yoshio | ||||||
著者 ローマ字 | ||||||
Ozasa, Kazunari | ||||||
著者 所属 | ||||||
著者 所属 | ||||||
著者 所属 | ||||||
埼玉大学大学院理工学研究科人間支援・生産科学部門 | ||||||
著者 所属(別言語) | ||||||
Graduate School of Science and Engineering, Saitama University | ||||||
著者 所属(別言語) | ||||||
Graduate School of Science and Engineering, Saitama University | ||||||
著者 所属(別言語) | ||||||
Graduate School of Science and Engineering, Saitama University | ||||||
著者 所属(別言語) | ||||||
RIKEN (The Institute of Physical and Chemical Research) | ||||||
書誌情報 |
PHYSICAL REVIEW B 巻 75, 号 19, p. 195318-1-195318-10, 発行日 2007 |
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年月次 | ||||||
2007-5 | ||||||
出版者名 | ||||||
出版者 | The American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 10980121 | |||||
関連サイト | ||||||
内容記述タイプ | Other | |||||
内容記述 | http://link.aps.org/abstract/PRB/v75/e195318 | http://link.aps.org/abstract/PRB/v75/e195318 | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | The location of quantum dots (QDs) embedded in a GaAs matrix is successfully identified by microscopic photoluminescence (PL) measurement during nanoprobe indentation with a horizontal scan at low temperature (10 K). By introducing a high-sensitive load cell and a focused ion beam-fabricated flat-apex nanoprobe, the indentation force and PL of QDs are measured simultaneously at each point in the direction of the nanoprobe horizontal scanning with a constant indentation force. The experimental results show that the emission energy from QDs has a strong dependence on the location of QDs relative to the nanoprobe-indented location. Consequently, the emission energy shifts with the nanoprobe scan, generating an emission trace with a constant indentation force. Based on the energy shift of the ground state of the QD simulated by the combination of three-dimensional finite element strain calculation and strain-dependent k center dot p Hamiltonian, an estimation method is developed, which enables us to identify the location of the QD from its emission trace in the nanoprobe indentation experiment. Results indicate that all the emission traces clearly observed are emitted from the QDs around the edge of the nanoprobe-indented area. Further discussion reveals that the evolution of shear strain generates hole accumulation around the contact edge of the indented nanoprobe. Consequently, the high density of holes enhances the PL of the QDs in that region. | |||||
版 | ||||||
[出版社版] | ||||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
資源タイプ | ||||||
内容記述タイプ | Other | |||||
内容記述 | text | |||||
フォーマット | ||||||
内容記述タイプ | Other | |||||
内容記述 | application/pdf | |||||
作成日 | ||||||
日付 | 2008-04-01 | |||||
日付タイプ | Created | |||||
アイテムID | ||||||
A1002555 |