Investigation of Degradation in Photovoltaic Modules by Infrared and Electroluminescence Imaging

  • Archana Sinha
  • Subinoy Roy
  • Sagarika Kumar
  • Rajesh GuptaEmail author
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 194)


Photovoltaic (PV) modules suffer from a variety of degradation that reduces their long-term performance and reliability. This paper presents a comprehensive investigation of various outdoor degradation in PV modules by spatially-resolved infrared (IR) thermography and electroluminescence (EL) characterization techniques. Active IR thermography has been implemented for the investigation of delamination, corroded interconnects and other electrical losses in a PV module, while EL characterization technique has been exploited for the quantification of discoloration extent in encapsulant material, and detection of finger and cell breakages. Due to fast and non-destructive nature, these imaging techniques can be employed for large-area inspection of PV modules in shorter time.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2017

Authors and Affiliations

  • Archana Sinha
    • 1
  • Subinoy Roy
    • 1
  • Sagarika Kumar
    • 1
  • Rajesh Gupta
    • 1
    Email author
  1. 1.Department of Energy Science and EngineeringIndian Institute of Technology BombayMumbaiIndia

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