Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV19)
DOI: https://doi.org/10.29363/nanoge.hopv.2020.037
Publication date: 6th February 2020
This talk will focus on recent efforts to conduct local, spatially-resolved absorption/emission microscopy measurements on hybrid perovskite thin films. Motivating these studies is the recent discovery that organometal halide perovskites such as methylammonium lead iodide (MAPbI3) possess impressive power conversion efficiencies when used as active layers in thin film solar cells. Despite impressive performance gains realized in perovskite photovoltaics, much remains to be understood about their fundamental photophysics. To illustrate, little is known about the role of compositional and/or morphological disorder in the optical and electrical response of these materials. Additionally, effects such as light- and bias-induced anion and cation phase segregation as well as migration are known to alter the optical response of perovskite solar cells. Consequently, a need exists for detailed microscopic studies of basic hybrid perovskite photophysics as well as spatially-resolved measurements to clarify their disorder-induced optical heterogeneities. More recent work focuses on infrared imaging of cation migration in these materials.
US DOE (Award DE-SC0014334 )
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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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