An Illumination- and Temperature-Dependent Analytical Model for Copper Indium Gallium Diselenide (CIGS) Solar Cells

Christopher Deline, Timothy Silverman, Xingshu Sun, Muhammad Alam, Rebekah Garris

Research output: Contribution to journalArticlepeer-review

19 Scopus Citations

Abstract

In this paper, we present a physics-based analytical model for copper indium gallium diselenide (CIGS) solar cells that describes the illumination-and temperature-dependent current-voltage (I-V) characteristics and accounts for the statistical shunt variation of each cell. The model is derived by solving the drift-diffusion transport equation so that its parameters are physical and, therefore, can be obtained from independent characterization experiments. The model is validated against CIGS I-V characteristics as a function of temperature and illumination intensity. This physics-based model can be integrated into a large-scale simulation framework to optimize the performance of solar modules, as well as predict the long-Term output yields of photovoltaic farms under different environmental conditions.

Original languageAmerican English
Article number7515167
Pages (from-to)1298-1307
Number of pages10
JournalIEEE Journal of Photovoltaics
Volume6
Issue number5
DOIs
StatePublished - Sep 2016

Bibliographical note

Publisher Copyright:
© 2011-2012 IEEE.

NREL Publication Number

  • NREL/JA-5J00-66398

Keywords

  • Analytical model
  • compact model
  • copper indium gallium diselenide (CIGS)
  • heterojunction
  • illumination dependent
  • temperature dependent

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