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Browse Journals & Magazines > Applied Physics Letters ...> Volume:92 Issue:9 Help

Origin of green emission from ZnS nanobelts as revealed by scanning near-field optical microscopy

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4 Author(s)
Tsuruoka, T. ; International Center for Materials Nanoacrhitectonics (MANA), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan ; Liang, C.H. ; Terabe, K. ; Hasegawa, T.

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The emission properties of ZnS nanobelts synthesized through thermal evaporation were investigated by means of scanning near-field optical microscopy. The photoluminescence (PL) images of single nanobelts exhibited a bright line along their length. The local light emission spectra measured over the bright lines showed a green emission peak around 535 nm, which was in good agreement with a PL peak obtained for an ensemble of the nanobelts. From careful scanning-electron-microscopy observations of identical nanobelts, we found that the observed green emission is related to line or planar defects of the ZnS nanobelts.

Published in:
Applied Physics Letters  (Volume:92 ,  Issue: 9 )

Date of Publication: Mar 2008

Page(s):
091908 - 091908-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2890715
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Mar 2008

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