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Title: Synthesis of Cu{sub 2}O from CuO thin films: Optical and electrical properties

Hole conducting, optically transparent Cu{sub 2}O thin films on glass substrates have been synthesized by vacuum annealing (5×10{sup −6} mbar at 700 K for 1 hour) of magnetron sputtered (at 300 K) CuO thin films. The Cu{sub 2}O thin films are p-type and show enhanced properties: grain size (54.7 nm), optical transmission 72% (at 600 nm) and Hall mobility 51 cm{sup 2}/Vs. The bulk and surface Valence band spectra of Cu{sub 2}O and CuO thin films are studied by temperature dependent Hall effect and Ultra violet photo electron Spectroscopy (UPS). CuO thin films show a significant band bending downwards (due to higher hole concentration) than Cu{sub 2}O thin films.
Authors:
; ;  [1] ;  [2] ; ;  [3]
  1. Department of Physics, Indian Institute of Technology Madras, Chennai- 600036 (India)
  2. Indus Synchrotrons Utilization Division, R R Centre for Advanced Technology, Indore -452013 (India)
  3. UGC-DAE Consortium for Scientific Research, University Campus, Khandwa Road, Indore-452001 (India)
Publication Date:
OSTI Identifier:
22488548
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 5; Journal Issue: 4; Other Information: (c) 2015 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ANNEALING; COPPER OXIDES; ELECTRICAL PROPERTIES; ELECTRON SPECTROSCOPY; GRAIN SIZE; HALL EFFECT; MAGNETRONS; SPECTRA; SPUTTERING; SUBSTRATES; SYNTHESIS; TEMPERATURE DEPENDENCE; THIN FILMS