Open Access Nano Express

Synthesis of Tapered CdS Nanobelts and CdSe Nanowires with Good Optical Property by Hydrogen-Assisted Thermal Evaporation

Min Wang12 and GuangTao Fei12*

Author Affiliations

1 Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P.O. Box 1129, 230031, Hefei, People’s Republic of China

2 Anhui Key Laboratory of Nanomaterials and Nanostructures, Institute of Solid State Physics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, P.O. Box 1129, 230031, Hefei, People’s Republic of China

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Nanoscale Research Letters 2009, 4:1166-1170  doi:10.1007/s11671-009-9376-9

Published: 10 July 2009

Abstract

The tapered CdS nanobelts and CdSe nanowires were prepared by hydrogen-assisted thermal evaporation method. Different supersaturation leads to two different kinds of 1D nanostructures. The PL measurements recorded from the as-prepared tapered CdS nanobelts and CdSe nanowires show only a bandgap emission with relatively narrow full-width half maximum, which means that they possess good optical property. The as-synthesized high-quality tapered CdS nanobelts and CdSe nanowires may be excellent building blocks for photonic devices.

Keywords:
Nanomaterials; II-VI semiconductors; Chemical vapor deposition; Vapor–liquid–solid; Photoluminescence