Thumbnail
Access Restriction
Open

Author Ando, M. ♦ Kanemitsu, Y. ♦ Kushida, T. ♦ Matsuda, K. ♦ Saiki, T. ♦ White, C. W.
Sponsorship (US)
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Publisher The American Physical Society
Language English
Subject Keyword MATERIALS SCIENCE ♦ ABSORPTION ♦ ION IMPLANTATION ♦ MATRICES ♦ OPTICAL MICROSCOPES ♦ OPTICS ♦ ORIGIN ♦ PHOTOLUMINESCENCE
Abstract We report on photoluminescence (PL) experiments in CdS nanocrystals fabricated by sequential ion implantation in Al{sub 2}O{sub 3} 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.
ISSN 00036951
Educational Use Research
Learning Resource Type Article
Publisher Date 2001-07-23
Publisher Department Oak Ridge National Laboratory
Publisher Place United States
Journal Applied Physics Letters
Volume Number 79
Issue Number 4
Organization Oak Ridge National Laboratory


Open content in new tab

   Open content in new tab