Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
DOI: https://doi.org/10.29363/nanoge.hopv.2022.088
Publication date: 20th April 2022
Lead halide single crystals and thick pellets have attracted attention for application in ionizing-radiation detection. Yet, the mixed ionic-electronic conductivity of these materials results in current instability and hysteretic artifacts that hinders the long-term device operation. Herein, we discuss on the electrical performance of several metal-halide perovskites such as MAPbI3, MAPBBr3 and CsPbBr3 in the timescale of hours. Our analyses include time-of-flight mobility measurements, impedance spectroscopy and chronoamperometries in different configutations. Our experiments indicate the formation of several regimes of space-charge-limited current (SCLC) with a major contribution from the surface mobile conductivity over the bulk component. We show that the ionic-SCLC seems to be an operational mode, despite one can design experiments to neglect the transport contribution of the mobile ions.
We acknowledge the funding from the European Union's Horizon 2020 research and innovation program under the Photonics Public Private Partnership (www.photonics21.org) with the project PEROXIS under the grant agreement N° 871336.
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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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