Journal of Applied Physics, volume 98, issue 8, pages 83514

Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method

D. Kim ¹

M. Miyamoto ¹

T. Mishima ¹

M. Nakayama ¹

Hide authors affiliations Show authors affiliations: 1 affiliation

Osaka City University Department of Applied Physics, Graduate School of Engineering, , 3-3-138 Sugimoto Sumiyoshi-ku, Osaka 558-8585, Japan |

Publication type: Journal Article

Publication date: 2005-10-15

AIP Publishing

Journal: Journal of Applied Physics

scimago Q2

SJR: 0.649

CiteScore: 5.4

Impact factor: 2.7

ISSN: 00218979, 10897550

DOI: 10.1063/1.2106008

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General Physics and Astronomy

Abstract

We have investigated the effects of surface modification on photoluminescence (PL) properties of CdS quantum dots (QDs) prepared by a reverse-micelle method. It is demonstrated that the modification of QD surface with a Cd(OH)2 layer leads to a strong enhancement of the band-edge PL intensity of CdS QDs in reverse micelles. The PL-decay profile before the surface modification exhibits a fast decay component less than 50ps. After the modification, the fast-decay component disappears. The drastic change of the PL-decay profiles before and after the surface modification corresponds to the marked increase of the PL intensity. This suggests that the strong enhancement of the band-edge PL intensity originates from the remarkable reduction of nonradiative recombination processes, which usually result in a very short decay time, due to surface defects of QDs.

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CITATIONS

40 Total citations

4 Recent citations

3.82 Field Citation Ratio

n/a Relative Citation Ratio

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Kim D. et al. Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method // Journal of Applied Physics. 2005. Vol. 98. No. 8. p. 83514.

GOST all authors (up to 50) Copy

Kim D., Miyamoto M., Mishima T., Nakayama M. Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method // Journal of Applied Physics. 2005. Vol. 98. No. 8. p. 83514.

RIS |

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RIS Copy

TY - JOUR

DO - 10.1063/1.2106008

UR - https://doi.org/10.1063/1.2106008

TI - Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method

T2 - Journal of Applied Physics

AU - Kim, D.

AU - Miyamoto, M.

AU - Mishima, T.

AU - Nakayama, M.

PY - 2005

DA - 2005/10/15

PB - AIP Publishing

SP - 83514

IS - 8

VL - 98

SN - 0021-8979

SN - 1089-7550

ER -

BibTex |

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BibTex (up to 50 authors) Copy

@article{2005_Kim,

author = {D. Kim and M. Miyamoto and T. Mishima and M. Nakayama},

title = {Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method},

journal = {Journal of Applied Physics},

year = {2005},

volume = {98},

publisher = {AIP Publishing},

month = {oct},

url = {https://doi.org/10.1063/1.2106008},

number = {8},

pages = {83514},

doi = {10.1063/1.2106008}

}

MLA

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MLA Copy

Kim, D., et al. “Strong enhancement of band-edge photoluminescence in CdS quantum dots prepared by a reverse-micelle method.” Journal of Applied Physics, vol. 98, no. 8, Oct. 2005, p. 83514. https://doi.org/10.1063/1.2106008.

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Publisher

AIP Publishing

Journal

Journal of Applied Physics

scimago Q2

SJR

0.649

CiteScore

5.4

Impact factor

2.7

ISSN

00218979 (Print)

10897550 (Electronic)