Premium
An Interlaboratory Study on the Stability of All‐Printable Hole Transport Material–Free Perovskite Solar Cells
Author(s) -
De Rossi Francesca,
Barbé Jérémy,
Tanenbaum David M.,
Cinà Lucio,
Castriotta Luigi Angelo,
Stoichkov Vasil,
Wei Zhengfei,
Tsoi Wing Chung,
Kettle Jeffrey,
Sadula Artem,
Chircop John,
Azzopardi Brian,
Xie Haibing,
Di Carlo Aldo,
Lira-Cantú Monica,
Katz Eugene A.,
Watson Trystan M.,
Brunetti Francesca
Publication year - 2020
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.202000134
Subject(s) - photovoltaic system , perovskite (structure) , materials science , open circuit voltage , sunlight , degradation (telecommunications) , stability (learning theory) , carbon fibers , short circuit , energy conversion efficiency , environmental science , optoelectronics , composite material , chemical engineering , electrical engineering , computer science , physics , optics , engineering , voltage , machine learning , composite number
Comparisons between different laboratories on long‐term stability analyses of perovskite solar cells (PSCs) is still lacking in the literature. This work presents the results of an interlaboratory study conducted between five laboratories from four countries. Carbon‐based PSCs are prepared by screen printing, encapsulated, and sent to different laboratories across Europe to assess their stability by the application of three ISOS aging protocols: (a) in the dark (ISOS‐D), (b) under simulated sunlight (ISOS‐L), and (c) outdoors (ISOS‐O). Over 1000 h stability is reported for devices in the dark, both at room temperature and at 65 °C. Under continuous illumination at open circuit, cells survive only for few hours, although they recover after being stored in the dark. Better stability is observed for cells biased at maximum power point under illumination. Finally, devices operate in outdoors for 30 days, with minor degradation, in two different locations (Barcelona, Spain and Paola, Malta). The findings demonstrate that open‐circuit conditions are too severe for stability assessment and that the diurnal variation of the photovoltaic parameters reveals performance to be strongly limited by the fill factor, in the central hours of the day, due to the high series resistance of the carbon electrode.