Numerical modeling and analysis of CdS/Cd1-xZnx Te solar cells as a function of CdZnTe doping, lifetime and thickness

Mohammadnoor Imamzai, Mohammadreza Aghaei, Nowshad Amin

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

3 Citations (Scopus)

Abstract

The main purpose of this paper is to investigate the effect of bandgap, carrier concentration, minority carrier life time and CdZnTe absorber layer thickness on the thin film solar cell baseline case. The bandgap of Cd 1-xZnx Te solar cells are tunable between 1.4SeV and 2.2eV (depends on the value of x). In this research AMPS-1D has been used for simulation. The results of this study indicate that by decreasing the absorber layer's thickness, the efficiency decreases. In the baseline cases, the absorber layer's bandgap was changed from 1.45eV to 2.05eV, It was found out that by increasing the energy gap, efficiency increases but after 1.85ev the bandgap will be constant, hence Eg=1.88eV was considered for absorber to analyze the baseline cases. It was observed that by increasing the lifetime and carrier concentrations of absorber layer, the output parameters increase in the cells. However, the baseline cases structures are the same (SnO 2/CdS/CdZnTe/Back Contact) and the highest conversion efficiency of 25.505% is obtained by baseline case 2 (Jsc= 29.819 mA/cm 2, Voc = 1.28 Volt, FF= 0.731) which has higher doping and minority carriers lifetime.

Original languageEnglish
Title of host publication4th International Conference on Photonics, ICP 2013 - Conference Proceeding
Pages87-89
Number of pages3
DOIs
Publication statusPublished - 1 Dec 2013
Externally publishedYes
Event2013 IEEE 4th International Conference on Photonics, ICP 2013 - Melaka, Malaysia
Duration: 28 Oct 201330 Oct 2013

Conference

Conference2013 IEEE 4th International Conference on Photonics, ICP 2013
Country/TerritoryMalaysia
CityMelaka
Period28/10/1330/10/13

Keywords

  • AMPS-1D
  • CdZnTe solar cells
  • Efficiency
  • Thin film solar cells
  • Tunable bandgap

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