Sharp photoluminescence of CdS nanocrystals in Al2O3 matrices formed by sequential ion implantation

M. Ando; Y. Kanemitsu; T. Kushida; K. Matsuda; T. Saiki; C. W. White

doi:10.1063/1.1387259

Sharp photoluminescence of CdS nanocrystals in Al₂O₃ matrices formed by sequential ion implantation

M. Ando, Y. Kanemitsu, T. Kushida, K. Matsuda, T. Saiki, C. W. White

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

21 Citations (Scopus)

Abstract

We report on photoluminescence (PL) experiments in CdS nanocrystals fabricated by sequential ion implantation in Al₂O₃ matrices. The PL spectrum and the spatial image of the PL intensity have been studied at 8 K using a scanning near-field optical microscope. The PL spectrum at each bright spot has been found to consist of narrow lines of various energies, although the spectrum measured by conventional optics shows a single and broad band locating below the free-exciton absorption energy. The origin of the sharp PL lines in CdS nanocrystals will be discussed.

Original language	English
Pages (from-to)	539-541
Number of pages	3
Journal	Applied Physics Letters
Volume	79
Issue number	4
DOIs	https://doi.org/10.1063/1.1387259
Publication status	Published - 2001 Jul 23
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.1387259

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abstract = "We report on photoluminescence (PL) experiments in CdS nanocrystals fabricated by sequential ion implantation in Al2O3 matrices. The PL spectrum and the spatial image of the PL intensity have been studied at 8 K using a scanning near-field optical microscope. The PL spectrum at each bright spot has been found to consist of narrow lines of various energies, although the spectrum measured by conventional optics shows a single and broad band locating below the free-exciton absorption energy. The origin of the sharp PL lines in CdS nanocrystals will be discussed.",

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AU - Ando, M.

AU - Kanemitsu, Y.

AU - Kushida, T.

AU - Matsuda, K.

AU - Saiki, T.

AU - White, C. W.

PY - 2001/7/23

Y1 - 2001/7/23

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AB - We report on photoluminescence (PL) experiments in CdS nanocrystals fabricated by sequential ion implantation in Al2O3 matrices. The PL spectrum and the spatial image of the PL intensity have been studied at 8 K using a scanning near-field optical microscope. The PL spectrum at each bright spot has been found to consist of narrow lines of various energies, although the spectrum measured by conventional optics shows a single and broad band locating below the free-exciton absorption energy. The origin of the sharp PL lines in CdS nanocrystals will be discussed.

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Sharp photoluminescence of CdS nanocrystals in Al₂O₃ matrices formed by sequential ion implantation

Abstract

ASJC Scopus subject areas

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