Photochromic Control in Hybrid Perovskite Photovoltaics
Abstract
AbstractThe application of perovskite photovoltaics is hampered by issues related to the operational stability upon exposure to external stimuli, such as voltage bias and light. The dynamic control of the properties of perovskite materials in response to light could ensure the durability of perovskite solar cells, which is especially critical at the interface with charge‐extraction layers. We have applied a functionalized photochromic material based on spiro‐indoline naphthoxazine at the interface with hole‐transport layers in the corresponding perovskite solar cells with the aim of stabilizing them in response to voltage bias and light. We demonstrate photoinduced transformation by a combination of techniques, including transient absorption spectroscopy and Kelvin probe force microscopy. As a result, the application of the photochromic derivative offers improvements in photovoltaic performance and operational stability, highlighting the potential of dynamic photochromic strategies in perovskite photovoltaics.
Article Details
Authors (21)
Weifan Luo
Adolphe Merkle Institute/ University of Fribourg Fribourg 1700 Switzerland
José María Andrés Castán
Université Grenoble Alpes CEA CNRS Grenoble‐INP, IRIG‐SyMMES, 17 avenue des Martyrs Grenoble 38000 France
Diego Mirani
Université Grenoble Alpes CEA CNRS Grenoble‐INP, IRIG‐SyMMES, 17 avenue des Martyrs Grenoble 38000 France
Antonio J. Riquelme
Université Grenoble Alpes CEA CNRS Grenoble‐INP, IRIG‐SyMMES, 17 avenue des Martyrs Grenoble 38000 France
Amit Kumar Sachan
Forschungsschwerpunkt Organic Electronics & Photovoltaics ZHAW School of Engineering Winterthur 8400 Switzerland
Olzhas Kurman
Department of Nanoenergy Engineering Pusan National University Busan 46241 South Korea
SunJu Kim
Department of Nanoenergy Engineering Pusan National University Busan 46241 South Korea
Fabiola Faini
Physical Chemistry Department University of Pavia Pavia 27100 Italy
Paul Zimmermann
Alexander Hinderhofer
Yash Patel
Aaron T. Frei
Photochemical Dynamic Group Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne Lausanne 1015 Switzerland
Jacques‐E. Moser
Photochemical Dynamic Group Institute of Chemical Sciences and Engineering École Polytechnique Fédérale de Lausanne Lausanne 1015 Switzerland
Daniel Ramírez
Frank Schreiber
Institut für Angewandte Physik, Universität Tübingen
Pascale Maldivi
Université Grenoble Alpes CEA CNRS Grenoble‐INP, IRIG‐SyMMES, 17 avenue des Martyrs Grenoble 38000 France
Ji‐Youn Seo
Department of Nanoenergy Engineering Pusan National University Busan 46241 South Korea
Wolfgang Tress
Giulia Grancini
Physical Chemistry Department University of Pavia Pavia 27100 Italy
Renaud Demadrille
IRIG‐SyMMES University of Grenoble Alpes CEA CNRS Grenoble‐INP Grenoble France
Jovana V. Milić
Adolphe Merkle Institute/ University of Fribourg Fribourg 1700 Switzerland