Wong-Stringer, M., Game, O.S., Smith, J.A. et al. (10 more authors) (2018) High-Performance Multilayer Encapsulation for Perovskite Photovoltaics. Advanced Energy Materials, 8 (24). 1801234. ISSN 1614-6832
Abstract
An encapsulation system comprising of a UV‐curable epoxy, a solution processed polymer interlayer, and a glass cover‐slip, is used to increase the stability of methylammonium lead triiodide (CH3NH3PbI3) perovskite planar inverted architecture photovoltaic (PV) devices. It is found this encapsulation system acts as an efficient barrier to extrinsic degradation processes (ingress of moisture and oxygen), and that the polymer acts as a barrier that protects the PV device from the epoxy before it is fully cured. This results in devices that maintain 80% of their initial power conversion efficiency after 1000 h of AM1.5 irradiation. Such devices are used as a benchmark and are compared with devices having initially enhanced efficiency as a result of a solvent annealing process. It is found that such solvent‐annealed devices undergo enhanced burn‐in and have a reduced long‐term efficiency, a result demonstrating that initially enhanced device efficiency does not necessarily result in long‐term stability.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim. This is an author produced version of a paper subsequently published in Advanced Energy Materials. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | encapsulation; epoxy; lifetime; perovskite solar cells; PVP; solvent anneal; stability; T80 |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) The University of Sheffield > Faculty of Science (Sheffield) > Department of Chemistry (Sheffield) The University of Sheffield > Faculty of Science (Sheffield) > Department of Physics and Astronomy (Sheffield) |
Funding Information: | Funder Grant number ENGINEERING AND PHYSICAL SCIENCE RESEARCH COUNCIL (EPSRC) EP/M014797/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 09 Aug 2018 09:04 |
Last Modified: | 25 Aug 2020 12:47 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/aenm.201801234 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:134370 |