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Title: Heterojunction thin films based on multifunctional metal oxides for photovoltaic application

Metal oxides based multifunctional heterojunction thin films of ZnO/SnO{sub 2} and ZnO/SnO{sub 2}/CuO QDs were prepared by spin-coating technique. The crystallographic properties and the surface morphologies of the films were studied by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. The optical absorption studies revealed that the film thickness has considerable effect on the band gap values and is found to be in the range of 3.73–3.48 eV. The photoluminescence spectra showed several weak visible emission peaks related to the deep level defects (450-575 nm). Finally, the current density-voltage (J-V) characteristic of ZnO/SnO{sub 2}/CuO QDs (ZSCI) based heterojunction thin film coated on ITO is also reported.
Authors:
; ;  [1] ; ;  [2]
  1. School of Physics, Madurai Kamaraj University, Madurai - 625021 (India)
  2. School of Chemistry, Madurai Kamaraj University, Madurai - 625021 (India)
Publication Date:
OSTI Identifier:
22271065
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:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COPPER OXIDES; CURRENT DENSITY; ELECTRIC CONDUCTIVITY; EMISSION SPECTRA; EV RANGE; HETEROJUNCTIONS; MORPHOLOGY; PHOTOLUMINESCENCE; PHOTOVOLTAIC EFFECT; SCANNING ELECTRON MICROSCOPY; SPIN-ON COATING; SURFACES; THIN FILMS; TIN OXIDES; X-RAY DIFFRACTION; ZINC OXIDES