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Strong Quantum Confinement in Ordered PbSe Nanowire Arrays

Published online by Cambridge University Press:  31 January 2011

X. S. Peng ,
G. W. Meng ,
J. Zhang ,
X. F. Wang ,
C. Z. Wang ,
X. Liu  and
L. D. Zhang
X. S. Peng*
Affiliation:
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
G. W. Meng
Affiliation:
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
J. Zhang
Affiliation:
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
X. F. Wang
Affiliation:
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
C. Z. Wang
Affiliation:
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
X. Liu
Affiliation:
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
L. D. Zhang
Affiliation:
Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, People's Republic of China
*
a)Address all correspondence to this author. e-mail: zyzhao@mail.issp.ac.cn
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Abstract

Ordered PbSe crystalline nanowire arrays have been successfully fabricated in the nanochannels of porous anodic alumina membrane by direct current electrodeposition. X-ray diffraction and selected area electron diffraction investigations demonstrate that the PbSe nanowires have a uniform cubic structure. Electromicroscopy results show that the nanowires are quite ordered with diameters of about 50 nm and lengths up to 5 micrometers. X-ray energy dispersion analysis indicate that Pb:Se is very close to 1:1. The optical absorption spectrum of these PbSe nanowires show that there exist two peaks at 280 and 434 nm, respectively, attribute to excitonic absorption peaks.

Type
Articles
Information
Journal of Materials Research , Volume 17 , Issue 6 , June 2002 , pp. 1283 - 1286
Copyright
Copyright © Materials Research Society 2002

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