Baker, J.A., Mouhamad, Y., Hooper, K.E.A. et al. (3 more authors) (2016) From spin coating to roll-to-roll: investigating the challenge of upscaling lead halide perovskite solar cells. IET Renewable Power Generation. ISSN 1752-1416
Abstract
Spin coating, typically used to achieve nanometre thick films, is the established method for depositing perovskite precursors at lab scale for use in solar cells. This study investigates the dynamics of spin coating perovskite. By combining experimental measurement with a semi-empirical model the evaporation rate of the dimethylformamide solvent during the spin coating of a mixed lead halide precursor is determined to be 1.2 × 10 –8 m/s. When K-bar coating the same precursor the solvent does not significantly evaporate during the deposition process and when this film is crystallised on a hot plate a rough film results which gives a power conversion efficiency (PCE) of less than 2%. By increasing the airflow of the K-bar coated perovskite film during crystallisation to 2.7 × 10 –4 m/s the PCE increases significantly to 8.5% through an improvement in short-circuit current and fill factor.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 Institution of Engineering and Technology . This is an author produced version of a paper subsequently published in IET Renewable Power Generation . Uploaded in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Sheffield |
Academic Units: | 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/E04591X/1 |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 09 Mar 2017 11:43 |
Last Modified: | 21 Mar 2018 05:46 |
Published Version: | https://doi.org/10.1049/iet-rpg.2016.0683 |
Status: | Published |
Publisher: | Institution of Engineering and Technology (IET) |
Refereed: | Yes |
Identification Number: | 10.1049/iet-rpg.2016.0683 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:113320 |