CPV module to rate antireflective and encapsulant coating in outdoor conditions

Reflections are the most important channel losses in CPV modules. Since high efficiency solar cells need a protection against moisture and oxidation, we study an antireflective coating which also encapsulates the solar cells. It is based on a monolayer of microbeads partially submerged into PDMS. In...

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Bibliographic Details
Main Authors: Ritou, Arnaud, St-Pierre, Philippe, Provost, P. O., Forcade, Gavin, Dubuc, Christian, Dellea, Olivier, Hamon, Gwenaëlle, Volatier, Maïté, Jaouad, Abdelatif, Valdivia, Christopher E., Hinzer, Karin, Aimez, Vincent, Darnon, Maxime
Format: Conference Proceeding
Language:English
Subjects:
Antireflection coatings
Circuits
Encapsulation
Modules
Moisture effects
Nanoparticles
Oxidation
Photovoltaic cells
Solar cells
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Summary:Reflections are the most important channel losses in CPV modules. Since high efficiency solar cells need a protection against moisture and oxidation, we study an antireflective coating which also encapsulates the solar cells. It is based on a monolayer of microbeads partially submerged into PDMS. In this work, a CPV module is designed to compare the electrical performance of encapsulated and bare solar cells. A preliminary study demonstrates an increase in short- circuit current by 3.8% with EQE measurements and simulations. Outdoor measurements in Sherbrooke, Quebec, Canada gave a 6.4% increase in current for a 280X module on a clear cold day in September, after rejecting aberrant measurements, which confirms the interest of using microbeads as an antireflective coating for CPV applications.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0099255