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Title: Temperature dependent DC electrical conductivity studies of ZnO nanoparticle thick films prepared by simple solution combustion method

ZnO nanoparticles of different size were prepared by varying the molar ratio of glycine and zinc nitrate hexahydrate as fuel and oxidizer (F/O = 0.8, 1.11, 1.7) by simple solution combustion method. Powder samples were characterized by UV-Visible spectrophotometer, X-ray diffractometer, Scanning electron microscope (SEM). DC electrical conductivity measurements at room temperature and in the temperature range of 313-673K were carried out for the prepared thick films and it was found to increase with increase of temperature which confirms the semiconducting nature of the samples. Activation energies were calculated and it was found that, F/O molar ratio 1.7 has low E{sub AL} (Low temperature activation energy) and high E{sub AH} (High temperature activation energy) compared to other samples.
Authors:
; ; ;  [1]
  1. Department of PG Studies and Research in Physics, Kuvempu University, Shankaraghatta- 577451, Shimoga, Karnataka (India)
Publication Date:
OSTI Identifier:
22269472
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1591; Journal Issue: 1; Conference: 58. DAE solid state physics symposium 2013, Patiala, Punjab (India), 17-21 Dec 2013; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; ABSORPTION SPECTROSCOPY; ACTIVATION ENERGY; COMPARATIVE EVALUATIONS; ELECTRIC CONDUCTIVITY; FILMS; GLYCINE; NANOSTRUCTURES; PARTICLE SIZE; SCANNING ELECTRON MICROSCOPY; SPECTROPHOTOMETERS; TEMPERATURE DEPENDENCE; ULTRAVIOLET SPECTRA; ZINC NITRATES; ZINC OXIDES