The Effect of Antisolvent Treatment on the Growth of 2D/3D Tin Perovskite Films for Solar Cells
Source abstract
Abstract
High Resolution Image Download MS PowerPoint Slide Antisolvent treatment is used in the fabrication of perovskite films to control grain growth during spin coating. We study widely incorporated aromatic hydrocarbons and aprotic ethers, discussing the origin of their performance differences in 2D/3D Sn perovskite (PEA 0.2 FA 0.8 SnI 3 ) solar cells. Among the antisolvents that we screen, diisopropyl ether yields the highest power conversion efficiency in solar cells. We use a combination of optical and structural characterization techniques to reveal that this improved performance originates from a higher concentration of 2D phase, distributed evenly throughout the 2D/3D Sn perovskite film, leading to better crystallinity. This redistribution of the 2D phase, as a result of diisopropyl ether antisolvent treatment, has the combined effect of decreasing the Sn 4+ defect density and background hole density, leading to devices with improved open-circuit voltage, short-circuit current, and power conversion efficiency.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Electronics and Photovoltaics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Centre for Processable Electronics, Molecular Sciences Research Hub, Imperial College London, London W12 0BZ, U.K.
Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
Advanced Technology Institute, Department of Electrical and Electronic Engineering, University of Surrey, Guildford, Surrey GU2 7XH, U.K.
School of Engineering, London South Bank University, London SE1 0AA, U.K.
Department of Chemistry, University College London, London WC1H 0AJ, U.K.
Department of Electronic and Electrical Engineering, University College London, London WC1E 7JE, U.K.
Funding
Engineering and Physical Sciences Research Council · Royal Society · Division of Materials Research
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