Pillai, P.B. and De Souza, M.M. orcid.org/0000-0002-7804-7154 (2016) Centimetre scale mesoscopic perovskite solar cells via a novel combined solid state-solution crystallisation method. In: Book of abstracts UK Semi 2016. UK Semiconductors 2016, 06-07 Jul 2016, Sheffield, UK. .
Abstract
Regardless of architecture, most of the high efficiency Perovskite Solar Cells (PSCs) reported to date have sizes less than 0.1 cm2 [1] whereas an obligatory minimum area of 1-2 cm2 is recommended, to allow a comparison of competing technologies of photovoltaic cells [2]. A two-step solution based process is widely adopted for the growth of perovskite in small area high efficiency PSCs, whereby an initial lead iodide layer is spin coated on the electron/hole collection layer. The substrate is subsequently immersed/spin coated with methyl ammonium salt (MAI) solution prior to annealing at ~70 0C to form the perovskite [3]. The scalability of this approach is severely limited due to poor coverage of perovskite layer which often results in inferior cell efficiency. The best centimetre-scale PSCs reported to date are by vacuum evaporation method [4] and modified two step approach [5] (where lead iodide coated substrate is inserted into a pre-heated metal enclosure containing MAI powder to form the perovskite) with efficiencies of 10.9 to 12.6% respectively. Replacing the conventional hole and electron transport layers with doped inorganic oxide materials to minimise hysteresis has resulted in the highest efficiency of 15% on an area of ~1cm2 so far [1]. Here, a large area compatible combined solid state- solution crystallisation process is proposed for the first time. The new method gives better uniformity and pin-hole free coverage in comparison to the conventional solution based process.
Metadata
Authors/Creators: |
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Copyright, Publisher and Additional Information: | © UK Semiconductors 2016 | ||||
Dates: |
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Institution: | The University of Sheffield | ||||
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Electronic and Electrical Engineering (Sheffield) | ||||
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Depositing User: | Symplectic Sheffield | ||||
Date Deposited: | 15 Jun 2018 10:02 | ||||
Last Modified: | 19 Dec 2022 13:49 | ||||
Status: | Published | ||||
Refereed: | Yes |
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