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Indexed by:期刊论文

Date of Publication:2010-09-01

Journal:MATERIALS CHEMISTRY AND PHYSICS

Included Journals:SCIE、EI

Volume:123

Issue:1

Page Number:236-240

ISSN No.:0254-0584

Key Words:Nanostructures; Chalcogenides; Crystal growth; Optical properties

Abstract:Single-crystalline Sb2S3 nanotubes have been successfully prepared by a simple hydrothermal method. It was found that ethylenediaminetetraacetic acid (EDTA) plays a key role in the formation of Sb2S3 nanotubes. Without EDTA, only irregular particles with a size of several micrometers were produced. The morphology and structure of the obtained Sb2S3 nanotubes were characterized by XRD, SEM, TEM, and EDS analysis in detail. UV-vis-NIR spectroscopy was further employed to estimate the band gap energy of the obtained products. The measurement of the optical properties revealed that the obtained nanotubes have a band gap of 1.55 eV. The obtained Sb2S3 nanotubes may find potential applications in photoelectronic and solar energy because the experimental band gap is close to the optimum value for photovoltaic conversion. (C) 2010 Elsevier B.V. All rights reserved.