Proceedings of 13th Conference on Hybrid and Organic Photovoltaics (HOPV21)
Publication date: 11th May 2021
Halide perovskite stability has solidified as the major commercial barrier for these materials as photovoltaics, and may eventually be the primary barrier to their adoption into a broader suite of optoelectronic applications. In light of this situation, effort must be directed at understanding the broad array of degradation processes and pathways present in these materials in order to predict material stabiltiy and lifetime in varied real-world conditions. Toward this broader goal, we track the kinetics of the perovskite to non-perovskite phase transition in the model compound, cesium lead triiodide (CsPbI3). We explore the effects of temperature on the phase transition kinetics, and investigate the role of varied initiating gas-phase species (e.g., water vapor, ethanol, and tetrahydro furan) and their partial pressure. Further work is ongoing to more thoroughly characterize the nature of these effects. Characterization of these effects should lead to better predictions of material and device stability and more accurate predictions of real-world lifetime from accelerated testing data.
This work was supported in part by funding provided by the National Aeronautics and Space Administration (NASA), under award number NNX15AJ20H and NNX15AJ20H, Michigan Space Grant Consortium (MSGC). Additional support was provided by the Howard R. And Margaret E. Sluyter Faculty Development Fund, and the Hope College Dean of Natural and Applied Sciences.
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International Conference on Hybrid and Organic Photovoltaics
International 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.
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