Temperature coefficients of concentrator solar cells up to ultra-high irradiance

Avi Braun, Baruch Hirsch, Alexis Vossier, Eugene A. Katz, Jeffrey M. Gordon

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

Abstract

A flash-like, real-sun optical system has been used to experimentally measure the effect of irradiance (from 11 up to 8,600 suns) on the temperature coefficients of the key performance parameters of multijunction concentrator solar cells. Particular attention is paid to the time scales and magnitudes of junction heating, hence the degree to which the cell can be deemed isothermal, with implications for corresponding measurements from solar simulators with pulsed artificial light, and for the performance evaluation of concentrator photovoltaics. The theoretical bound for the magnitude of the temperature coefficient of Voc (as function of irradiance) has also been calculated for current commercial triple-junction structures.

Original languageEnglish
Title of host publicationProgram - 38th IEEE Photovoltaic Specialists Conference, PVSC 2012
Pages1688-1691
Number of pages4
DOIs
StatePublished - 2012
Externally publishedYes
Event38th IEEE Photovoltaic Specialists Conference, PVSC 2012 - Austin, TX, United States
Duration: 3 Jun 20128 Jun 2012

Publication series

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

Conference

Conference38th IEEE Photovoltaic Specialists Conference, PVSC 2012
Country/TerritoryUnited States
CityAustin, TX
Period3/06/128/06/12

Keywords

  • high irradiance
  • multijunction
  • solar simulators
  • temperature

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