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

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

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.

Original language	English
Article number	133104
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	87
Issue number	13
DOIs	https://doi.org/10.1063/1.2058228
Publication status	Published - 2005 Sept 26
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2058228

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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.",

year = "2005",

month = sep,

day = "26",

doi = "10.1063/1.2058228",

language = "English",

volume = "87",

pages = "1--3",

journal = "Applied Physics Letters",

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publisher = "American Institute of Physics",

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TY - JOUR

T1 - Photoluminescence properties of single Mn-doped CdS nanocrystals studied by scanning near-field optical microscopy

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.

PY - 2005/9/26

Y1 - 2005/9/26

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.

UR - https://www.scopus.com/pages/publications/28344447983

UR - https://www.scopus.com/pages/publications/28344447983#tab=citedBy

U2 - 10.1063/1.2058228

DO - 10.1063/1.2058228

M3 - Article

AN - SCOPUS:28344447983

SN - 0003-6951

VL - 87

SP - 1

EP - 3

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 13

M1 - 133104

ER -

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

Abstract

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