Encapsulation of solar cells in a transparent polymer composite material

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Abstract

Lightweight photovoltaic modules are becoming increasingly popular in many technical applications. This study proposes an approach to the production of a glass-filled prepreg encapsulant for solar cells lamination. Lamination of solar cells strings can result in the creation of a transparent and mechanically strong protective composite material. Prototypes of composite photovoltaic modules with high-efficiency HJT solar cells connected using electroconductive adhesive technology were fabricated. The climatic resistance of the obtained samples was estimated. It was found that composite modules pass successfully thermal cycling, UV exposure and hail tests. Damp heat test has revealed increased degradation. Degradation caused by moisture penetration initiates corrosion processes in the layers of transparent conductive oxide ITO or contact metallization mesh. The use of composite polymer material makes it possible to reduce the weight of photovoltaic modules due to the use of sheet glass in their design while maintaining an acceptable level of their climatic resistance.

About the authors

Ivan Yu. Dmitriev

R&D Center of Thin Film Technologies in Energetics

Author for correspondence.
Email: I.Dmitriev@hevelsolar.com
ORCID iD: 0000-0003-0605-9006

Cand. Sc. (Phys. and Math.), Lead Process Technologist

Russian Federation, 28, Politekhnicheskaya St., Saint Petersburg, 194064

Artem V. Kochergin

R&D Center of Thin Film Technologies in Energetics; Saint Petersburg Electrotechnical University “LETI”

Email: A.Kochergin@hevelsolar.com
ORCID iD: 0009-0005-6670-8508

Postgraduate Student

Russian Federation, 28, Politekhnicheskaya St., Saint Petersburg, 194064; 5, Professora Popova St., Saint Petersburg, 197022

Sergey A. Yakovlev

R&D Center of Thin Film Technologies in Energetics; Ioffe Physical-Technical Institute of the Russian Academy of Sciences

Email: S.Yakovlev@hevelsolar.com
ORCID iD: 0009-0009-3963-8355

Cand. Sc. (Phys. and Math.), Lead Process Technologist

Russian Federation, 28, Politekhnicheskaya St., Saint Petersburg, 194064; 26, Politekhnicheskaya St., Saint Petersburg, 194021

Vladimir S. Levitskii

R&D Center of Thin Film Technologies in Energetics

Email: V.Levitskiy@hevelsolar.com
ORCID iD: 0000-0002-7877-1329

Cand. Sc. (Eng.), Lead Measurements Specialist

Russian Federation, 28, Politekhnicheskaya St., Saint Petersburg, 194064

Alexey S. Abramov

R&D Center of Thin Film Technologies in Energetics

Email: a.abramov@hevelsolar.com
ORCID iD: 0000-0003-4310-4478

Cand. Sc. (Phys. and Math.), Head of Solar Energy Department

Russian Federation, 28, Politekhnicheskaya St., Saint Petersburg, 194064

Eugenii I. Terukov

R&D Center of Thin Film Technologies in Energetics; Ioffe Physical-Technical Institute of the Russian Academy of Sciences; Saint Petersburg Electrotechnical University “LETI”

Email: e.terukov@hevelsolar.com
ORCID iD: 0000-0002-4818-4924

D. Sc (Eng.), Professor, Deputy Director for Science

Russian Federation, 28, Politekhnicheskaya St., Saint Petersburg, 194064; 26, Politekhnicheskaya St., Saint Petersburg, 194021; 5, Professora Popova St., Saint Petersburg, 197022

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