Simulation of CZTS(Se)4 Tandem Solar Cells By AFORS-HET Software

Document Type : Research Paper

Authors

Physics Department, College of Education for pure science, University of Tikrit, Tikrit, Iraq.

Abstract

In this work, solar cells were simulated single, mechanically and monolithically stacked based on the CZTS (Se) 4 absorption layer, both layers of tandem solar cell were simulated using by AFORS-HET software (one-dimensional ). Electrical properties of the monolithical tandem cell, it's determined after the current matching to the top and bottom sub-cell. The short circuit current density Jsc is about 23.9 mA. cm-2 when the top cell thickness is 384 nm in conjunction with the 1000 nm bottom cell thickness. The maximum efficiency obtained is approximately 23.1% with an open circuit voltage Voc ~ 1146.9 mv. The efficiency of the mechanical tandem cell with series connection was 23.76 % at open circuit voltage Voc ~ 1166.9 mv and the efficiency about 26.62 % at open circuit voltage Voc ~ 475.2 mv for mechanical tandem cell with parallel connection when the both cells had the same thickness(1000nm)..

Keywords

Kirkuk Journal of Science
Volume 14, Issue 4
December 2019
Page 8-26

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History

  • Receive Date: 01 December 2019
  • Revise Date: 20 December 2019
  • Accept Date: 25 December 2019

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