Cellulose in Perovskite Solar Cells: from Substrates to Additives
Joaquín Valdez García a, Joice Jaqueline Kaschuk b c, Yazan Al Haj d, Aleksi Kamppinen a, Orlando J. Rojas b c, Tiffany Abitbol e f, Jaana Vapaavuori d, Kati Miettunen a
a Department of Mechanical and Materials Engineering, Faculty of Technology, University of Turku, FI-20500 Turku, Finland
b Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, FI-00076, Aalto, Espoo, Finland
c Department of Chemical and Biological Engineering, 2360 East Mall, The University of British Columbia, V6T 1Z3 Vancouver, BC, Canada
d Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, FI-00076 Aalto, Finland
e RISE Research Institutes of Sweden, SE-114 28 Stockholm, Sweden
f Institute of Materials, School of Engineering, EPFL, Station 12, 1015 Lausanne, Switzerland
International Conference on Hybrid and Organic Photovoltaics
Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV24)
València, Spain, 2024 May 12th - 15th
Organizer: Bruno Ehrler
Poster, Joaquín Valdez García, 200
Publication date: 6th February 2024

To satisfy our need for green energy more and more photovoltaic devices need to be fabricated. In order to be fully sustainable, these devices will need to be able to be recycled. Perovskite solar cells are usually fabricated on glass and using valuable materials that would need to be recovered, like silver, indium, lead, etc. One solution is to substitute glass for a burnable material like cellulose. Compared to synthetic polymeric substrates like PET and PEN, cellulose is a bio-based material with a low environmental impact and can be easily sourced and disposed of [1]. While having a lot of potential, cellulose still faces some challenges that need to be solved. In this work we discuss both the pros and cons of using cellulose as a substrate in photovoltaics, and how processing affects the properties of the films [2]. Additionally, we also discuss how cellulose has been used as an additive to improve the efficiency and stability of solar cells [3], [4].

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