Journal article
Alkyl Chain Length-Dependent Amine-Induced Crystallization for Efficient Interface Passivation of Perovskite Solar Cells
P Zhao, J Subbiah, B Zhang, JA Hutchison, G Ahluwalia, V Mitchell, KP Ghiggino, DJ Jones
Advanced Materials Interfaces | Published : 2023
Abstract
Efficient surface passivation of perovskite solar cells (PSC) using treatment with ammonium salts is demonstrated as an efficient method to enhance the device performance, owing to the affinity between the amine group and [PbI6]4− octahedron. However, due to their high solubility in polar solvents (DMF/DMSO), ammonium salts are more difficult to use in passivation of the interface between the electron transport layer and perovskite thin film in n-i-p structured PSCs. In this report, this work successfully links the amine group with a fullerene through a series of increasing carbon chain length, from two to twelve methylene units (FC-X, X = 2, 6, 12), and then introduce the synthesized molecu..
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Awarded by Australian Research Council
Funding Acknowledgements
This work was made possible by support from the Australian Renewable Energy Agency which funds the project grants within the Australian Centre for Advanced Photovoltaics. JAH acknowledges an Australian Research Council Future Fellowship award (FT180100295). Responsibility for the views, information or advice expressed herein is not accepted by the Australian Government. GIWAXS analysis was performed at the SAXS/WAXS beamline of the Australian Synchrotron. The authors acknowledge the facilities and the technical assistance of the RMIT University Microscopy and Microanalysis Facility (RMMF) for XPS studies.