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Title: Influence of precursor concentration on the properties of spray deposited CdO thin films

Cadmium oxide (CdO) thin films of thickness 50 to 200 nm were deposited on glass substrates maintained at 400°C using spray pyrolysis technique. CdO thin films were deposited by varying the molar concentrations of cadmium acetate solution such as 0.01, 0.05, 0.1, 0.15 and 0.2 M. X-ray diffraction studies reveal that the films are polycrystalline in nature with cubic structure. SEM images show that the films have well defined spherical grains and grain boundaries are seen. Optical studies reveal that the films prepared from solution of 0.01 and 0.1M concentration have high transparency than films prepared at other solution concentration. The optical energy band gap value decreases from 2.50 to 2.37eV with the increase in molar concentration. Electrical studies revealed that the CdO thin film prepared using 0.1M solution possesses lowest resistivity.
Authors:
 [1] ; ;  [2]
  1. Department of Physics, Karunya University, Coimbatore-641114 (India)
  2. Department of Electrical and Computer Engineering, Ajou University, Suwon 443-749 (Korea, Republic of)
Publication Date:
OSTI Identifier:
22490535
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1665; Journal Issue: 1; Conference: 59. DAE solid state physics symposium 2014, Tamilnadu (India), 16-20 Dec 2014; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACETATES; CADMIUM; CADMIUM OXIDES; CONCENTRATION RATIO; CUBIC LATTICES; ELECTRIC CONDUCTIVITY; ENERGY GAP; GLASS; GRAIN BOUNDARIES; OPACITY; POLYCRYSTALS; PYROLYSIS; SCANNING ELECTRON MICROSCOPY; SUBSTRATES; THIN FILMS; X-RAY DIFFRACTION