Simulation Analysis of Thermal Degradation in Graphene Back Contacted CdTe Ultrathin Films

M. Houshmand, M. H. Zandi, N. E. Gorji

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Simulation analysis of the thermal degradation in performance of a graphene back contacted CdSCdTe ultrathin film solar cell is performed using Solar Cell Capacitance Simulator. The application of the graphene nanolayer on the CdTe materials is interesting because of its cheaper cost, excellent electronic properties, and optical advantages. Degradation of a CdTe thin-film photovoltaics is mostly driven from the metallic back contacts. The graphene carbon-carbon network can reduce the extra interdiffusion of the metallic ions from the metallic back contacts to the front contact through the gran boundaries. The number of graphene layers determines the resistivity of this layer at the contact. This resistivity changes under the thermal stress. Thus, we investigate the degradation of the device metrics under thermal stress and compare it with the few experimental data reported in the literature.

Original languageEnglish
Article number7056456
Pages (from-to)493-496
Number of pages4
JournalIEEE Transactions on Nanotechnology
Volume14
Issue number3
DOIs
Publication statusPublished - 1 May 2015
Externally publishedYes

Keywords

  • Back contact
  • CdS/CdTe
  • degradation
  • graphene
  • ultrathin films

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