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Chemistry Central Journal, volume 9, issue 1, publication number 28

The structural and optical constants of Ag2S semiconductor nanostructure in the Far-Infrared

Reza Zamiri 1, 2
Hossein Abbastabar-Ahangar 3
Azmi Zakaria 1
Golnoosh Zamiri 1
Mehdi Shabani 2
Budhendra Singh 4
J. M. F. Ferreira 2
2
 
Department of Materials and Ceramic Engineering (DEMaC), University of Aveiro, Aveiro, Portugal
4
 
TEMA-NRD, Mechanical Engineering Department and Aveiro Institute of Nanotechnology (AIN), University of Aveiro, Aveiro, Portugal
Publication typeJournal Article
Publication date2015-05-22
Quartile SCImago
Quartile WOS
Impact factor
ISSN1752153X
General Chemistry
Abstract
In this paper a template-free precipitation method was used as an easy and low cost way to synthesize Ag2S semiconductor nanoparticles. The Kramers–Kronig method (K–K) and classical dispersion theory was applied to calculate the optical constants of the prepared samples, such as the reflective index n(ω) and dielectric constant ε(ω) in Far-infrared regime. Nanocrystalline Ag2S was synthesized by a wet chemical precipitation method. Ag2S nanoparticle was characterized by X-ray diffraction, Scanning Electron Microscopy, UV-visible, and FT-IR spectrometry. The refinement of the monoclinic β-Ag2S phase yielded a structure solution similar to the structure reported by Sadanaga and Sueno. The band gap of Ag2S nanoparticles is around 0.96 eV, which is in good agreement with previous reports for the band gap energy of Ag2S nanoparticles (0.9–1.1 eV). The crystallite size of the synthesized particles was obtained by Hall-Williamson plot for the synthesized Ag2S nanoparticles and it was found to be 217 nm. The Far-infrared optical constants of the prepared Ag2S semiconductor nanoparticles were evaluated by means of FTIR transmittance spectra data and K–K method.

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Zamiri R. et al. The structural and optical constants of Ag2S semiconductor nanostructure in the Far-Infrared // Chemistry Central Journal. 2015. Vol. 9. No. 1. 28
GOST all authors (up to 50) Copy
Zamiri R., Abbastabar-Ahangar H., Zakaria A., Zamiri G., Shabani M., Singh B., Ferreira J. M. F. The structural and optical constants of Ag2S semiconductor nanostructure in the Far-Infrared // Chemistry Central Journal. 2015. Vol. 9. No. 1. 28
RIS |
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RIS Copy
TY - JOUR
DO - 10.1186/s13065-015-0099-y
UR - https://doi.org/10.1186/s13065-015-0099-y
TI - The structural and optical constants of Ag2S semiconductor nanostructure in the Far-Infrared
T2 - Chemistry Central Journal
AU - Zamiri, Reza
AU - Abbastabar-Ahangar, Hossein
AU - Zakaria, Azmi
AU - Zamiri, Golnoosh
AU - Shabani, Mehdi
AU - Singh, Budhendra
AU - Ferreira, J. M. F.
PY - 2015
DA - 2015/05/22 00:00:00
PB - Springer Nature
IS - 1
VL - 9
SN - 1752-153X
ER -
BibTex
Cite this
BibTex Copy
@article{2015_Zamiri,
author = {Reza Zamiri and Hossein Abbastabar-Ahangar and Azmi Zakaria and Golnoosh Zamiri and Mehdi Shabani and Budhendra Singh and J. M. F. Ferreira},
title = {The structural and optical constants of Ag2S semiconductor nanostructure in the Far-Infrared},
journal = {Chemistry Central Journal},
year = {2015},
volume = {9},
publisher = {Springer Nature},
month = {may},
url = {https://doi.org/10.1186/s13065-015-0099-y},
number = {1},
doi = {10.1186/s13065-015-0099-y}
}
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