An Interlaboratory Study on the Stability of All-Printable Hole Transport Material–Free Perovskite Solar Cells

Francesca De Rossi, Jérémy Barbé, David M. Tanenbaum, Lucio Cinà, Luigi Angelo Castriotta, Vasil Stoichkov, Zhengfei Wei, Wing Chung Tsoi, Jeffrey Kettle, Artem Sadula, John Chircop, Brian Azzopardi, Haibing Xie, Aldo Di Carlo, Monica Lira-Cantú, Eugene A. Katz, Trystan M. Watson, Francesca Brunetti

Research output: Contribution to journalArticlepeer-review

20 Scopus citations


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.

Original languageEnglish
Article number2000134
JournalEnergy Technology
Issue number12
StatePublished - 1 Dec 2020


  • ISOS protocols
  • carbon
  • interlaboratory studies
  • long-term stability
  • perovskite solar cells

ASJC Scopus subject areas

  • General Energy


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