Proceedings of International Conference on Perovskite Thin Film Photovoltaics and Perovskite Photonics and Optoelectronics (NIPHO24)
Publication date: 25th April 2024
Metal halide perovskites are characterized by tunable bandgaps obtained by varying mainly the halide composition. CsPbBr3 and FAPbBr3 are typical example of this class of materials with gaps exceeding 2 eV. The ability to continuously adjust the bandgap of halide perovskite materials across a broad spectrum facilitates the development of semi-transparent solar cells and modules with high visual transmittance, a technology that can be exploited for building-integrated photovoltaics (BIPV). Through bandgap optimization, tandem configurations with NIR organic solar cells can be designed to enhance efficiency without compromising average visual transmittance (AVT) [1]. This presentation highlights the EU CITYSOLAR consortium’s progress in surpassing the state of the art, showcasing diverse fabrication techniques, from solution processes to physical deposition, for see-through photovoltaics. Beyond solar cells, module-level developments, including a low-temperature, full blade-coating method for depositing semi-transparent FAPbBr3-based perovskite modules on 300 cm² substrates [2] and innovative coupling between top perovskite module and bottom organic module are discussed. As a byproduct of this development, we show that wide-band gap perovskite such as FAPbBr3 are excellent X-Ray detectors with record bulk specific sensitivity exceeding 7.2 C Gy−1 cm−3 at 0 V.
This research has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 101007084 (CITYSOLAR). We acknowledge all the research team at CITYSOLAR consortium for their support. The work on X-Ray detectors has beed realized in collaboration with Marco Girolami, Fabio Matteocci, Valerio Serpente, Matteo Mastellone, Eleonora Bolli, Sara Pettinato, Stefano Salvatori, Barbara Paci, Amanda Generosi and Daniele M. Trucchi
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