Results in Physics (Jan 2017)

A computational study on the energy bandgap engineering in performance enhancement of CdTe thin film solar cells

  • Ameen M. Ali,
  • K.S. Rahman,
  • Lamya M. Ali,
  • M. Akhtaruzzaman,
  • K. Sopian,
  • S. Radiman,
  • N. Amin

Journal volume & issue
Vol. 7
pp. 1066 – 1072

Abstract

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In this study, photovoltaic properties of CdTe thin film in the configuration of n-SnO2/n-CdS/p-CdTe/p-CdTe:Te/metal have been studied by numerical simulation software named “Analysis of Microelectronic and Photonic Structure” (AMPS-1D). A modified structure for CdTe thin film solar cell has been proposed by numerical analysis with the insertion of a back contact buffer layer (CdTe:Te). This layer can serve as a barrier that will decelerate the copper diffusion in CdTe solar cell. Four estimated energy bandgap relations versus the Tellurium (Te) concentrations and the (CdTe:Te) layer thickness have been examined thoroughly during simulation. Correlation between energy bandgap with the CdTe thin film solar cell performance has also been established. Keywords: Numerical modelling, CdTe thin film, Solar cell, AMPS-1D, Bandgap