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Particle size-dependent adhesion forces and wind removal efficiency of anti-soiling coatings on textured solar glasses

Published online by Cambridge University Press:  27 August 2019

Klemens K. Ilse Open the ORCID record for Klemens K. Ilse [Opens in a new window] ,
Harish Nagari Gurumoorthy ,
Mohammed A. Bahattab ,
Saad H. Alqahtani ,
Mark Mirza ,
Walther Glaubitt ,
Volker Naumann ,
Christian Hagendorf  and
Jörg Bagdahn
Klemens K. Ilse*
Affiliation:
Fraunhofer Center for Silicon Photovoltaics CSP, D-06120 Halle (Saale), Germany Fraunhofer Institute for Microstructure of Materials and Systems IMWS, 06120 Halle (Saale), Germany Faculty EMW, Anhalt University of Applied Sciences, Koethen (Anhalt), Germany
Harish Nagari Gurumoorthy
Affiliation:
Fraunhofer Center for Silicon Photovoltaics CSP, D-06120 Halle (Saale), Germany Fraunhofer Institute for Microstructure of Materials and Systems IMWS, 06120 Halle (Saale), Germany Faculty EMW, Anhalt University of Applied Sciences, Koethen (Anhalt), Germany
Mohammed A. Bahattab
Affiliation:
King Abdulaziz City for Science and Technology KACST, Riad, Saudi Arabia
Saad H. Alqahtani
Affiliation:
King Abdulaziz City for Science and Technology KACST, Riad, Saudi Arabia
Mark Mirza
Affiliation:
Fraunhofer Institute for Silicate Research ISC, D-97082 Würzburg, Germany
Walther Glaubitt
Affiliation:
Fraunhofer Institute for Silicate Research ISC, D-97082 Würzburg, Germany
Volker Naumann
Affiliation:
Fraunhofer Center for Silicon Photovoltaics CSP, D-06120 Halle (Saale), Germany Fraunhofer Institute for Microstructure of Materials and Systems IMWS, 06120 Halle (Saale), Germany
Christian Hagendorf
Affiliation:
Fraunhofer Center for Silicon Photovoltaics CSP, D-06120 Halle (Saale), Germany Fraunhofer Institute for Microstructure of Materials and Systems IMWS, 06120 Halle (Saale), Germany
Jörg Bagdahn
Affiliation:
Faculty EMW, Anhalt University of Applied Sciences, Koethen (Anhalt), Germany
*
Address all correspondence to Klemens Ilse at klemens.ilse@csp.fraunhofer.de
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Abstract

Soiling can lead to severe performance losses of photovoltaic (PV) plants. Within this study, three different anti-soiling coatings (ASC) were applied to three different commercial, solar-grade rolled glasses with different surface structures. Laboratory soiling experiments were performed including wind simulation and a novel rotational force test to assess the influence of different surface structures of the glass substrate on the anti-soiling performance of the coatings. A detailed microscopic evaluation indicates a consistent ranking of the ASC with regard to particle resuspension behavior for both test methods and all substrates. Furthermore, the rotational force test yields a quantitative measure of the median force needed for particle removal from the respective coating, which is independent of the glass substrate surface morphology.

Type
Research Letters
Information
MRS Communications , Volume 9 , Issue 3 , September 2019 , pp. 964 - 970
Copyright
Copyright © The Author(s) 2019 

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References

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