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Title: Synthesis of indium sulphide quantum dots in perfluoronated ionomer membrane

In this paper, we demonstrate a simple and efficient method for synthesis of β-indium sulphide (In{sub 2}S{sub 3}) nanoparticles embedded in an ionomer matrix (nafion membrane). The influence of reaction temperature on structural, compositional and optical properties of these films were analysed using X-Ray Diffraction, EDAX, UV-Vis absorption spectroscopy and photoluminescence studies. Average particle diameter was estimated using modified effective mass approximation method. Absorption spectra of In{sub 2}S{sub 3} nanoparticles show blue shift compared to bulk In{sub 2}S{sub 3}, indicating strong quantum size confinement effects. PL emission in the wavelength range 530–600 nm was recorded using a 488 nm line from an Ar{sup +} laser as the excitation source.
Authors:
 [1] ; ;  [2]
  1. Centre for Nanotechnology Research, VIT University, Vellore (India)
  2. Department of Physics, Indian Institute of Technology, Chennai (India)
Publication Date:
OSTI Identifier:
22264003
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1576; Journal Issue: 1; Conference: OMTAT 2013: 2. international conference on optoelectronic materials and thin films for advanced technology, Kochi, Kerala (India), 3-5 Jan 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ABSORPTION SPECTRA; ABSORPTION SPECTROSCOPY; ARGON IONS; COMPARATIVE EVALUATIONS; EXCITATION; INDIUM; INDIUM SULFIDES; MEMBRANES; OPTICAL PROPERTIES; PARTICLES; PHOTOLUMINESCENCE; QUANTUM DOTS; SYNTHESIS; WAVELENGTHS; X-RAY DIFFRACTION