Surface modifications and optical variations of (-1 1 1) lattice oriented CuO nanofilms for solar energy applications

V. Dhanasekaran, T. Mahalingam

Research output: Contribution to journalArticlepeer-review

22 Scopus citations

Abstract

This paper reports on the preparation and characterization of Successive Ionic Layer by Adsorption and Reaction (SILAR) grown CuO thin films. The films were deposited onto glass substrates at various solution pH values. The thickness of the film is increased with increase of solution pH values. X-ray diffraction analysis revealed that the prepared films exhibited the monoclinic structure with (-1 1 1) predominant orientation. The optimized pH value is 11 ± 0.1. The microstructure, morphology, optical and electrical properties are studied and reported. The transmission spectra (T) at normal incidence revealed that the films exhibit indirect transitions and may be tailored for passing selected bands of frequencies in visible near IR range. The activation energy is estimated to be about 0.29 eV. Crown

Original languageEnglish
Pages (from-to)3585-3593
Number of pages9
JournalMaterials Research Bulletin
Volume48
Issue number9
DOIs
StatePublished - Sep 2013

Keywords

  • Chemical synthesis
  • Crystal structure
  • Thin films
  • X-ray diffraction

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