Numerical modelling of ultra thin Cu(In,Ga)Se 2 solar cells

Nowshad Amin, Puvaneswaran Chelvanathan, Mohammad Hossain, Kamaruzzaman Sopian

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

43 Citations (Scopus)

Abstract

Various thicknesses of copper-indium-gallium-diselenide (CIGS) absorber layer are incorporated into numerical simulation by Solar Cell Capacitance Simulator (SCAPS) to investigate the performance of ultra thin CIGS solar cells. CuIn 1-xGa xSe 2 absorber layer thickness is varied from 0.3-1.0 μm. Results show that the performance of CIGS solar cells decreases as the absorber layer thickness is decreased. Conversion efficiencies of 10.74% and 14.36% are achieved for cells with 0.3 μm and 1.0 μm thick absorber layers, respectively. Incorporation of band gap grading or commonly known as back surface field in the ultra thin CIGS solar cells improves the performance of the cells. In this study, back surface field is incorporated in the numerical modelling of the ultrathin CIGS solar cells. For the graded cells, efficiencies of 12.38% and 17.26% are achieved for cells with 0.3 μm and 1.0 μm thick absorber layers. These improvements are attributed to the less recombination loss at the CIGS/Mo interface. This study shows ultra thin CIGS solar cells have comparable performance parameters with the conventional CIGS solar cells.

Original languageEnglish
Title of host publicationEnergy Procedia
Pages291-298
Number of pages8
Volume15
DOIs
Publication statusPublished - 2012
Externally publishedYes
Event6th International Conference on Materials for Advanced Technologies, ICMAT 2011 - Singapore, Singapore
Duration: 26 Jun 20111 Jul 2011

Other

Other6th International Conference on Materials for Advanced Technologies, ICMAT 2011
CountrySingapore
CitySingapore
Period26/6/111/7/11

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Keywords

  • CIGS
  • SCAPS
  • Solar cells
  • Ultra thin film

ASJC Scopus subject areas

  • Energy(all)

Cite this

Amin, N., Chelvanathan, P., Hossain, M., & Sopian, K. (2012). Numerical modelling of ultra thin Cu(In,Ga)Se 2 solar cells In Energy Procedia (Vol. 15, pp. 291-298) https://doi.org/10.1016/j.egypro.2012.02.034