International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2572

Simulation analysis of the effect graded Zn(O,S) on the performance of the ultra thin copper indium gallium diselenide (CIGS) solar cells

Chihi Adel*
  • Chihi Adel*
  • Laboratoire Photovoltaïque, Centre des Recherches et des Technologies de l'Energie Technopole BorjCedria B.P No. 95 2050 - Hammam Lif - Tunisie.
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Boujmil Mohamed Fethi
  • Boujmil Mohamed Fethi
  • Laboratoire Photovoltaïque, Centre des Recherches et des Technologies de l'Energie Technopole BorjCedria B.P No. 95 2050 - Hammam Lif - Tunisie.
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Bessais Brahim
  • Bessais Brahim
  • Laboratoire Photovoltaïque, Centre des Recherches et des Technologies de l'Energie Technopole BorjCedria B.P No. 95 2050 - Hammam Lif - Tunisie.
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  •  Received: 31 January 2014
  •  Accepted: 12 May 2014
  •  Published: 31 May 2014

Abstract

This paper indicated a numerical modeling of ultra thin copper indium gallium diselenide (CIGS) solar cells. An optimum value of the thickness of the structure has been calculated and it is shown that by optimizing the thickness of the cell, efficiency has been increased and cost of production can been reduced. Numerical optimizations have been done by adjusting parameters such as thickness of the layers and the gap. It shows that by optimization of the considered structure, open circuit voltage (Vco) increases and an improvement of conversion efficiency has been observed in comparison to the conventional CIGS system.
 
Key words: Graded pseudo copper indium gallium diselenide (CIGS)-Zn(O,S), solar cells, efficiency enhancement, solar capacitance simulator (SCAPS).

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