Optical properties of flash evaporated amorphous Se100-xIn x thin films for CuInSe2 solar cell applications

Cosmas M. Muiva, Kelebogile Maabong, Stephen T. Sathiaraj, Julius M. Mwabora

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Amorphous Se100-xInx thin films were prepared by flash evaporation of the pre-melt quenched bulk samples. The samples were characterised and the suitability of each composition assessed towards applications as a buffer layers in CuInSe2 photovoltaic cells. XRD studies confirmed that all the samples were amorphous. There was a descending dependence of complex dielectric constant and refractive index on wavelength which levelled in the infra-red (IR) region. A red shift in the optical energy gap Eg opt from 1.76 eV for In = 5 at% to 1.46 eV for In = 20 at% was observed. The Eg opt values were in the range that is compatible with solar energy conversion.

Original languageEnglish
Title of host publicationProceedings of the IASTED African Conference on Power and Energy Systems, AfricaPES 2012
Pages86-90
Number of pages5
DOIs
Publication statusPublished - Dec 1 2012
Event4th IASTED African Conference on Power and Energy Systems, AfricaPES 2012 - Gaborone, Botswana
Duration: Sep 3 2012Sep 5 2012

Other

Other4th IASTED African Conference on Power and Energy Systems, AfricaPES 2012
CountryBotswana
CityGaborone
Period9/3/129/5/12

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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    Muiva, C. M., Maabong, K., Sathiaraj, S. T., & Mwabora, J. M. (2012). Optical properties of flash evaporated amorphous Se100-xIn x thin films for CuInSe2 solar cell applications. In Proceedings of the IASTED African Conference on Power and Energy Systems, AfricaPES 2012 (pp. 86-90) https://doi.org/10.2316/P.2012.760-029