skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Effect of Cu/In molar ratio on the microstructural and optical properties of microcrystalline CuInS{sub 2} prepared by solvothermal route

Abstract

Synthesis and characterization of CuInS{sub 2} powder sample prepared by a simple and convenient solvothermal method is reported. The influence of the variation of Cu/In molar ratio from 0.69 to 1.25 on the particle morphology, crystal structure and optical properties of CuInS{sub 2} samples was studied. The X-ray diffraction studies indicated that the samples were polycrystalline in nature. SEM images of the samples revealed that the copper-rich products were uniform microspheres with smooth surfaces, whereas microspheres formed by network of interconnected flakes were obtained for indium-rich products. The optical band gaps (E{sub g}) of the products decreased from 1.60 to 1.43 eV with variation of Cu/In molar ratio. The variation of the Urbach tail width with Cu/In molar ratio indicated that the density of the defects is much higher for the indium-rich CuInS{sub 2}, which was clearly revealed from Raman measurements.

Authors:
; ;  [1];  [2];  [1]
  1. Department of Materials Science, Indian Association for the Cultivation of Science, Kolkata 700032 (India)
  2. Advanced Materials Technology Department, Regional Research Laboratory, Bhubaneswar 760013 (India)
Publication Date:
OSTI Identifier:
21143944
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 43; Journal Issue: 10; Other Information: DOI: 10.1016/j.materresbull.2007.10.013; PII: S0025-5408(07)00457-6; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER SULFIDES; CRYSTAL STRUCTURE; EV RANGE 01-10; INDIUM SULFIDES; MICROSPHERES; MICROSTRUCTURE; MORPHOLOGY; OPTICAL PROPERTIES; POLYCRYSTALS; RAMAN SPECTROSCOPY; SCANNING ELECTRON MICROSCOPY; SEMICONDUCTOR MATERIALS; SURFACES; SYNTHESIS; X-RAY DIFFRACTION

Citation Formats

Das, Kajari, Panda, Subhendu K, Gorai, Soma, Mishra, Pratima, and Chaudhuri, Subhadra. Effect of Cu/In molar ratio on the microstructural and optical properties of microcrystalline CuInS{sub 2} prepared by solvothermal route. United States: N. p., 2008. Web. doi:10.1016/j.materresbull.2007.10.013.
Das, Kajari, Panda, Subhendu K, Gorai, Soma, Mishra, Pratima, & Chaudhuri, Subhadra. Effect of Cu/In molar ratio on the microstructural and optical properties of microcrystalline CuInS{sub 2} prepared by solvothermal route. United States. https://doi.org/10.1016/j.materresbull.2007.10.013
Das, Kajari, Panda, Subhendu K, Gorai, Soma, Mishra, Pratima, and Chaudhuri, Subhadra. 2008. "Effect of Cu/In molar ratio on the microstructural and optical properties of microcrystalline CuInS{sub 2} prepared by solvothermal route". United States. https://doi.org/10.1016/j.materresbull.2007.10.013.
@article{osti_21143944,
title = {Effect of Cu/In molar ratio on the microstructural and optical properties of microcrystalline CuInS{sub 2} prepared by solvothermal route},
author = {Das, Kajari and Panda, Subhendu K and Gorai, Soma and Mishra, Pratima and Chaudhuri, Subhadra},
abstractNote = {Synthesis and characterization of CuInS{sub 2} powder sample prepared by a simple and convenient solvothermal method is reported. The influence of the variation of Cu/In molar ratio from 0.69 to 1.25 on the particle morphology, crystal structure and optical properties of CuInS{sub 2} samples was studied. The X-ray diffraction studies indicated that the samples were polycrystalline in nature. SEM images of the samples revealed that the copper-rich products were uniform microspheres with smooth surfaces, whereas microspheres formed by network of interconnected flakes were obtained for indium-rich products. The optical band gaps (E{sub g}) of the products decreased from 1.60 to 1.43 eV with variation of Cu/In molar ratio. The variation of the Urbach tail width with Cu/In molar ratio indicated that the density of the defects is much higher for the indium-rich CuInS{sub 2}, which was clearly revealed from Raman measurements.},
doi = {10.1016/j.materresbull.2007.10.013},
url = {https://www.osti.gov/biblio/21143944}, journal = {Materials Research Bulletin},
issn = {0025-5408},
number = 10,
volume = 43,
place = {United States},
year = {Thu Oct 02 00:00:00 EDT 2008},
month = {Thu Oct 02 00:00:00 EDT 2008}
}