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HERO ID
1611420
Reference Type
Journal Article
Title
Growth of Sb2S3 nanowires synthesized by colloidal process and self-assembly of amorphous spherical Sb2S3 nanoparticles in wires formation
Author(s)
Validzic, ILj; Abazovic, ND; Mitric, M
Year
2012
Is Peer Reviewed?
1
Journal
Metals and Materials International
ISSN:
1598-9623
Volume
18
Issue
6
Page Numbers
989-995
DOI
10.1007/s12540-012-6010-7
Web of Science Id
WOS:000311516500010
Abstract
We report the organic synthesis and growth of antimony
sulfide (Sb2S3) amorphous nanospheres to nanowires via a simple, colloidal synthetic method.
Amorphous Sb2S3 nanospheres self-assembly in wires formation was dispersed in isopropyl alcohol.
With increased heating time, Sb2S3 nanospheres grew into Sb2S3 nanowires, probably involving both
mechanisms of Ostwald-ripening and spherical nanoparticle self-organization through oriented-
attachment of individual nanoparticles. Also, the as-synthesized Sb2S3 nanowires with different
heating times (0, 5 and 10 min.) from the moment of appearance of the Sb2S3 precipitate were
analyzed. The observed nanowires become longer with increased heating time and are around 100 nm
in diameter and 10-20 mu m in length. UV-Vis absorption spectroscopy reveals that the optical
band-gap energy of the Sb2S3 nanowires is independent of the heating times and is found to be
similar to 1.5-1.6 eV. The optical band-gap energy found for amorphous Sb2S3 nanospheres was also
similar to 1.5 eV. The structure of Sb2S3 samples was refined down to R-factors of 10.82, 11.76
and 12.08%. The refinement showed that Sb2S3 powder belongs to the orthorhombic type with space
group Pbnm (no. 62) and that Sb2S3 nanowires grow along the [010] direction.
Keywords
semiconductors; chemical synthesis; optical properties; X-ray diffraction; scanning electron microscopy (SEM)
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