Detecting cell cracks and other PV module failures with UV fluorescence


By Arnaud Morlier, received B.S. and M.S. degrees in chemistry from the University of Nice Sophia-Antipolis in 2006 and 2008 and a PhD in physical chemistry from the University Joseph Fourier, Grenoble, France in 2011. From 2008 to 2011 he worked on the development of composite materials for the encapsulation of organic optoelectronic devices at CEA-INES in France. Since 2011 he has been working as a scientist at ISFH, where his work focuses on photovoltaic module durability, encapsulation and interconnection.; Michael Siebert, achieved a B.Sc. in mechatronics from the University of Applied Sciences Ostwestfalen-Lippe in 2009. From 2009 up to now he has been working as an engineer at ISFH. Since 2011 he has been a member of the module technologies group and is currently working on design and testing of new measurement methods for modules.; Marc Köntges, received his PhD degree in physics 2002 at the University of Oldenburg on characterisation of CuInGaSe2 and CdTe thin film solar cells. From 2002 he led the thin-film technology group at ISFH and changed in 2005 to lead the PV module and interconnection group at ISFH. He currently develops characterisation and production methods for PV modules.; Iris Kunze, achieved her training as chemical technical assistant at the Hannover School for chemistry and pharmacy. She worked in the domain of analytics for various employers until joining ISFH Since 2002 she is working at ISFH in the photovoltaic modules technologies group where she is specialised in module testing and characterisation.; Susanne Blankemeyer, was with Krane-Optik, Rheda-Wiedenbrück, Germany, until 1986, where she was trained as an Optician. From 1999 to 2007, she was a Laboratory Assistant with the R&D Department of Orbotech, a manufacturer of automated optical inspection systems, in Bad Pyrmont, Germany. In 2007, she joined the module and interconnection group at ISFH. She is currently involved in the development of novel interconnection techniques and optimisation of module concepts.; Gerhard Mathiak, studied physics at Technical University Braunschweig and has a PhD in engineering from Technical University Berlin. He has been employed at two PV module manufacturers and since 2011 at TÜV Rheinland.

Module failure | Defective modules causing power losses in PV systems need to be easily detected
with a rapid and cost-effective inspection method. UV fluorescence of module encapsulation polymers is used for the fast detection of module failures under daylight conditions without disconnection, allowing the inspection of up to 200 modules in an hour during daytime

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