Photoluminescence properties of single Mn-doped CdS nanocrystals studied by scanning near-field optical microscopy

Atsushi Ishizumi; Kazunari Matsuda; Toshiharu Saiki; C. W. White; Yoshihiko Kanemitsu

doi:10.1063/1.2058228

Photoluminescence properties of single Mn-doped CdS nanocrystals studied by scanning near-field optical microscopy

Atsushi Ishizumi, Kazunari Matsuda, Toshiharu Saiki, C. W. White, Yoshihiko Kanemitsu

研究成果: Article › 査読

36 被引用数 (Scopus)

抄録

We have fabricated Mn-doped CdS (CdS:Mn) nanocrystals embedded in Al2 O3 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.

本文言語	English
論文番号	133104
ページ（範囲）	1-3
ページ数	3
ジャーナル	Applied Physics Letters
巻	87
号	13
DOI	https://doi.org/10.1063/1.2058228
出版ステータス	Published - 2005 9 26
外部発表	はい

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

文献へのアクセス

10.1063/1.2058228

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引用スタイル

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title = "Photoluminescence properties of single Mn-doped CdS nanocrystals studied by scanning near-field optical microscopy",

abstract = "We have fabricated Mn-doped CdS (CdS:Mn) nanocrystals embedded in Al2 O3 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.",

author = "Atsushi Ishizumi and Kazunari Matsuda and Toshiharu Saiki and White, {C. W.} and Yoshihiko Kanemitsu",

note = "Funding Information: Part of this work was supported by The Research Foundation of Opto-Science and Technology and The Futaba Electronics Memorial Foundation. Oak Ridge National Laboratory is managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725.",

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AU - Ishizumi, Atsushi

AU - Matsuda, Kazunari

AU - Saiki, Toshiharu

AU - White, C. W.

AU - Kanemitsu, Yoshihiko

N1 - Funding Information: Part of this work was supported by The Research Foundation of Opto-Science and Technology and The Futaba Electronics Memorial Foundation. Oak Ridge National Laboratory is managed by UT-Battelle, LLC for the U.S. Department of Energy under Contract No. DE-AC05-00OR22725.

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N2 - We have fabricated Mn-doped CdS (CdS:Mn) nanocrystals embedded in Al2 O3 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.

AB - We have fabricated Mn-doped CdS (CdS:Mn) nanocrystals embedded in Al2 O3 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.

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