Effect of weak diodes on the performance of CdTe thin-film modules

Galymzhan T. Koishiyev, James R. Sites

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

A 2-D numerical circuit model is used to study the effect of weak-diodes on the efficiency of a CdTe thin-film module. Numerical calculations of module-efficiency loss due to weak-diodes of different levels of voltage loss and fractional module area are shown. It is shown that absolute module-efficiency loss Δη (%) varies in systematic fashion with these weak-diode parameters. It was also shown that for given values of fractional area and severity of weak-diodes Δη is a strong function of the distribution pattern. A reliable parameter P to characterize the distribution of weak-diodes is introduced, and its effect on Δη, as well as individual-parameter (FF, VOC) losses, is presented. The partial isolation effect of weak-diodes due to higher transparent-conductive-oxide (TCO) sheet resistance is demonstrated.

Original languageEnglish
Title of host publication2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
Pages1978-1981
Number of pages4
DOIs
Publication statusPublished - Dec 1 2009
Event2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States
Duration: Jun 7 2009Jun 12 2009

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Other

Other2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
CountryUnited States
CityPhiladelphia, PA
Period6/7/096/12/09

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering

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  • Cite this

    Koishiyev, G. T., & Sites, J. R. (2009). Effect of weak diodes on the performance of CdTe thin-film modules. In 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 (pp. 1978-1981). [5411519] (Conference Record of the IEEE Photovoltaic Specialists Conference). https://doi.org/10.1109/PVSC.2009.5411519