Dynamics of perovskite synthesis in alcohol
At a Glance
Section titled âAt a Glanceâ| Metadata | Details |
|---|---|
| Publication Date | 2024-02-06 |
| Journal | Proceedings of the International Conference on Hybrid and Organic Photovoltaics |
| Authors | Alan D. F. Dunbar, Adam N. Urwick, Suleiman Bello, Malin B. Johansson |
| Institutions | Uppsala University, University of Sheffield |
Abstract
Section titled âAbstractâDynamics of perovskite synthesis in alcoholAlan Dunbar a, Adam Urwick a, Suleiman Bello a, Malin Johansson ba University of Sheffield, Department of Chemical and Biological Engineering, Sir Robert Hadfield Building, Mappin Street, Sheffield, United Kingdomb Department of ChemistryâĂ ngström Laboratory, Uppsala University, SE 751 21 Uppsala, SwedenInternational Conference on Hybrid and Organic PhotovoltaicsProceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV24)ValĂšncia, Spain, 2024 May 12th - 15thOrganizer: Bruno EhrlerOral, Alan Dunbar, presentation 038DOI: https://doi.org/10.29363/nanoge.hopv.2024.038Publication date: 6th February 2024Interest in wet chemical synthesis to produce metal halide perovskite powder has increased in recent years because it subsequently allows for easy production of large quantities of perovskite crystals. These crystals can then be used to produce thin perovskite films for solar cells which exhibit high stability and performance [1,2]. The stoichiometric homogeneity achieved by the crystallisation process in the alcohol dispersions simplifies thin film deposition and therefore improves photovoltaic device performance over large areas. In this study we characterize the formation of metal halide perovskite in environmentally friendly alcohols using in situ wide and small angle X-ray scattering to compare the perovskite formation in methanol, ethanol, propan-2-ol and pentanol. The different alcohols are used as solvents for precipitation reactions forming methyl ammonium lead iodide MAPbI3 and methyl ammonium formamidinium lead iodide MA0.5FA0.5PbI3 perovskites. Time resolved in-situ small and wide X-ray scattering (SAXS and WAXS) permits the reaction of the dissolved methylammonium iodide and formamidinium iodide with the suspended lead iodide to form perovskite to be followed in real time, and provides evidence of the mechanism by which the structural assembly from precursors to perovskite occurs. These measurements led to a deeper understanding of intermediate steps during the reaction, where particle morphology control is possible during the perovskite material assembly. The production of metal halide perovskite by precipitation as described in this work is cost-effective and has fewer safety issues due to the low solvent toxicity. This work outlines an alternative processing route to make stable perovskites for photovoltaics. References:[1] Konstantinos Tsevas, Joel A. Smith, Vikas Kumar, Cornelia Rodenburg, Mihalis Fakis, Abd. Rashid bin Mohd Yusoff, Maria Vasilopoulou, David G. Lidzey, Mohammad K. Nazeeruddin, and Alan D. F. Dunbar. Controlling PbI2 Stoichiometry during Synthesis to Improve the Performance of Perovskite Photovoltaics Chem. Mater. 2021, 33, 2, 554-566[2] alin B. Johansson, Ling Xie, Byeong Jo Kim, Jakob Thyr, Timo Kandra, Erik M.J. Johansson, Mats Göthelid, Tomas Edvinsson, Gerrit Boschloo. Highly crystalline MAPbI3 perovskite grain formation by irreversible poor-solvent diffusion aggregation, for efficient solar cell fabrication, Nano Energy, Volume 78, 2020, 105346Acknowledgements:This work was supported by funding from the SUPERGEN SuperSolar International and Industrial Engagement Fund and an allocation of beamtime on i22 at the Diamond Light Source - experiment number SM29997-1. Thanks to Dr Thomas Zinn for help with the experimental setup and data acquisition. © FUNDACIO DE LA COMUNITAT VALENCIANA SCITOnanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.MATSUSPreviously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.International Conference on Hybrid and Organic PhotovoltaicsInternational Conference on Hybrid and Organic Photovoltaics (HOPV) is celebrated yearly in May. The main topics are the development, function and modeling of materials and devices for hybrid and organic solar cells. The field is now dominated by perovskite solar cells but also other hybrid technologies, as organic solar cells, quantum dot solar cells, and dye-sensitized solar cells and their integration into devices for photoelectrochemical solar fuel production.Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and OptoelectronicsThe main topics of the Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics (IPEROP) are discussed every year in Asia-Pacific for gathering the recent advances in the fields of material preparation, modeling and fabrication of perovskite and hybrid and organic materials. Photovoltaic devices are analyzed from fundamental physics and materials properties to a broad set of applications. The conference also covers the developments of perovskite optoelectronics, including light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and OptoelectronicsThe International Conference on Perovskite Thin Film Photovoltaics Perovskite Photonics and Optoelectronics (NIPHO) is the best place to hear the latest developments in perovskite solar cells as well as on recent advances in the fields of perovskite light-emitting diodes, lasers, optical devices, nanophotonics, nonlinear optical properties, colloidal nanostructures, photophysics and light-matter coupling.