Identification and Analysis of Distinct Features in Imaging Thin-Film Solar Cells

Katherine N. Zaunbrecher, Steven W. Johnston, James R. Sites

Research output: Contribution to conferencePaperpeer-review

3 Scopus Citations


Electroluminescence and photoluminescence (EL and PL) are two imaging techniques employed at NREL that are used to qualitatively evaluate solar cells. In this work, imaging lab-scale CdTe and CIGS devices provides information about small-area PV response, which will aid in determining the effects of non-uniformities on cell performance. EL, PL, and dark lock-in thermography signatures are first catalogued. Their responses to varying conditions are then studied. Further analysis includes acquiring spectral data, making microscopy measurements, and correlating luminescence to device performance. The goal of this work is to quantitatively determine non-uniformity effects on cell performance using rapid imaging techniques.

Original languageAmerican English
Number of pages5
StatePublished - 2012
Event38th IEEE Photovoltaic Specialists Conference, PVSC 2012 - Austin, TX, United States
Duration: 3 Jun 20128 Jun 2012


Conference38th IEEE Photovoltaic Specialists Conference, PVSC 2012
Country/TerritoryUnited States
CityAustin, TX

Bibliographical note

See CP-5200-54149 for preprint

NREL Publication Number

  • NREL/CP-5200-56916


  • electroluminescence
  • imaging
  • photoluminescence
  • photovoltaic cells
  • thin films


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