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タイトル: | Photoluminescence properties of single Mn-doped CdS nanocrystals studied by scanning near-field optical microscopy |
著者: | Ishizumi, Atsushi Matsuda, Kazunari Saiki, Toshiharu White, C. W. Kanemitsu, Yoshihiko https://orcid.org/0000-0002-0788-131X (unconfirmed) |
著者名の別形: | 金光, 義彦 |
発行日: | Sep-2005 |
出版者: | American Institute of Physics |
誌名: | Applied Physics Letters |
巻: | 87 |
号: | 13 |
論文番号: | 133104 |
抄録: | We have fabricated Mn-doped CdS (CdS:Mn) nanocrystals embedded in Al2O3 matrices by sequential ion implantation and studied their photoluminescence (PL) properties by a scanning near-field optical microscope (SNOM). In the PL spectra of CdS:Mn nanocrystals measured by the SNOM, several sharp PL lines and a broad PL band were observed. The sharp PL lines are related to bound excitons at shallow impurities in CdS nanocrystals. The Mn-related PL spectrum is very broad even in single nanocrystals at low temperatures, and both the peak energy and the spectral width of the PL band depend on the excitation laser intensity. The PL properties of single CdS:Mn nanocrystals are discussed. |
著作権等: | c 2005 American Institute of Physics. |
URI: | http://hdl.handle.net/2433/87364 |
DOI(出版社版): | 10.1063/1.2058228 |
出現コレクション: | 学術雑誌掲載論文等 |
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