期刊
ENERGY TECHNOLOGY
卷 8, 期 12, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.202000134
关键词
carbon; interlaboratory studies; ISOS protocols; long-term stability; perovskite solar cells
资金
- European Commission's StableNextSol COST Action [MP1307]
- Engineering and Physical Sciences Research Council (EPSRC) [EP/M015254/1, EP/L017792/1, EP/M025020/1, EP/N020863/1]
- Welsh Government
- Solar Photovoltaic Academic Research Consortium II (SPARC II) project - WEFO
- Pomona College
- Spanish MINECO [ENE2016-79282-C5-2-R]
- OrgEnergy Excellence Network [CTQ2016-81911-REDT]
- Agencia de Gestio d'Ajuts Universitaris i de Recerca (AGAUR) [2017 SGR 329]
- Severo Ochoa program from Spanish MINECO [SEV-2017-0706]
- CERCA Programme/Generalitat de Catalunya
- European Commission H2020 TWINNING JUMP2Excel (Joint Universal activities for Mediterranean PV integration Excellence) project [810809]
- University of Rome Tor Vergata
- Tuscany region
- POR-FESR 2014-2020
- European Union's Horizon 2020 research and innovation program under the Marie Skodowska-Curie grant [764787 MAESTRO]
- European Union's Horizon 2020 research and innovation program [763989 APOLO]
- EPSRC [EP/N020863/1, EP/M028267/1, EP/M025020/1, EP/M015254/1, EP/L017792/1] Funding Source: UKRI
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 degrees 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.
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