Skip Navigation

Journal of Electron Microscopy 2005 54(supplement 1):i31-i34; doi:10.1093/jmicro/54.suppl_1.i31
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to My Personal Archive
Right arrow Download to citation manager
Right arrowRequest Permissions
Google Scholar
Right arrow Articles by Kim, D.
Right arrow Articles by Nakayama, M.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Kim, D.
Right arrow Articles by Nakayama, M.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us  
What's this?

© The Author 2005. Published by Oxford University Press on behalf of Japanese Society of Microscopy. All rights reserved. For permissions, please email: journals.permissions@oupjournals.org

Article

Photoluminescence properties of CdS and CdMnS quantum dots prepared by a reverse-micelle method

DaeGwi Kim*, Masashi Miyamoto and Masaaki Nakayama

Department of Applied Physics, Graduate School of Engineering, Osaka City University, Osaka 558-8585, Japan

* Author to whom correspondence should be addressed. E-mail: tegi{at}a-phys.eng.osaka-cu.ac.jp

Abstract

We have investigated photoluminescence properties of CdS and CdMnS quantum dots (QDs) prepared by a reverse-micelle method. Before the surface modification, a broad luminescence band that originates from defects is dominant in CdS QDs. By the modification, the intensity of the band-edge luminescence is remarkably increased. The surface modification also causes drastic changes of decay profiles of the band-edge luminescence. The intensity of Mn2+ luminescence originating from the intra-3d shell transition of Mn2+ is also increased by the surface modification of CdMnS QDs. The decay time of the band-edge luminescence in surface-modified CdMnS QDs is faster than that in CdS QDs, which is due to the energy transfer from excitons to Mn2+.

Keywords     photoluminescence properties, CdS, CdMnS, quantum dots, reverse-micelle method, surface modification

Received     20 February 2004, accepted 15 October 2004


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us    What's this?




Disclaimer:
Please note that abstracts for content published before 1996 were created through digital scanning and may therefore not exactly replicate the text of the original print issues. All efforts have been made to ensure accuracy, but the Publisher will not be held responsible for any remaining inaccuracies. If you require any further clarification, please contact our Customer Services Department.