Detection of snail tracks on photovoltaic modules using a combination of Raman and fluorescence spectroscopy

M. de Biasio, R. Leitner, Ch. Hirschl

Research output: Conference proceeding/Chapter in Book/Report/Conference Paperpeer-review

Abstract

Snail tracks are discolorations of the silver fingers on solar cells. We present a measurement system that can detect snail tracks. Their origin is unknown, but they are thought to be linked to micro cracks in the solar cell. Regions with micro cracks on a photovoltaic module were identified using electroluminescence measurements. Based on the electroluminescence data the faulty regions were mapped with a system that uses a combination of Raman and fluorescence spectroscopy. Our results show that our measurement system is a powerful tool for detecting snail tracks.
Original languageGerman (Austria)
Title of host publication2013 Seventh International Conference on Sensing Technology (ICST)
PublisherIEEE Computer Society
Pages334-337
Number of pages4
ISBN (Print)978-1-4673-5220-8
DOIs
Publication statusPublished - 5 Dec 2013
Externally publishedYes
Event2013 Seventh International Conference on Sensing Technology (ICST) - Wellington, New Zealand
Duration: 3 Dec 20135 Dec 2013

Conference

Conference2013 Seventh International Conference on Sensing Technology (ICST)
Period3/12/135/12/13

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