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Title: Auto-combustion synthesis and characterization of Mg doped CuAlO{sub 2} nanoparticles

The synthesis of pure and Mg doped Copper aluminumoxide CuAlO{sub 2}nanoparticles, a promising p-type TCO (transparent conducting oxide) have been done bysol gel auto combustion method using NaOH as a fuel, calcinated at 600°C. The structural properties were examined by XRD and SEM techniques. The optical absorption spectra of CuAlO{sub 2} sample recorded by UV-VIS spectrophotometer in the range of 200 to 800 nm have been presented. The crystallite size was determined by powder X-ray diffraction technique. The electrical behavior of pure and Mg doped CuAlO{sub 2} has been studied over a wide range of frequencies by using complex impedance spectroscopy.The variation of a.c. conductivity has been studied as function of frequency and temperature. The data taken together conclude that doping causes decreases in the ac conductivity of the nanoparticles as compared with the pure nanoparticles. Mg doping affects the optical properties and band gap.
Authors:
; ;  [1]
  1. Centre of Excellence in Materials Science (Nanomaterials), Department of Applied Physics, Z.H. College of Engg.& Technology, Aligarh Muslim University, Aligarh-202002 (India)
Publication Date:
OSTI Identifier:
22490267
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; ABSORPTION SPECTRA; ALUMINATES; COMPARATIVE EVALUATIONS; COPPER COMPOUNDS; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; ENERGY GAP; FREQUENCY DEPENDENCE; MAGNESIUM COMPOUNDS; NANOPARTICLES; OPTICAL PROPERTIES; POWDERS; P-TYPE CONDUCTORS; SCANNING ELECTRON MICROSCOPY; SODIUM HYDROXIDES; SPECTROPHOTOMETRY; SYNTHESIS; ULTRAVIOLET SPECTRA; VISIBLE SPECTRA; X-RAY DIFFRACTION