Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
DOI: https://doi.org/10.29363/nanoge.hopv.2022.174
Publication date: 20th April 2022
Mixed cation and mixed halide perovskites have led to the most stable solar cells reported, so far mostly prepared by solution-processing. This might be due to the technical difficulties associated with the vacuum deposition from multiple thermal sources, requiring a high level of control over the deposition rate of each precursor during the film formation. Here we present multi-component materials obtained by using multiple sources (up to 4) thermal vacuum deposition. Different stoichiometries are studied, varying the A-site cations (methylammonium, formamidinium and cesium), as well as mixed halide systems. Mixed iodide-bromide perovskites with bandgap up to 1.8 eV were prepared, as they are ideal as front cell in perovskite-perovskite tandem devices. Also, we showed the preparation of narrow bandgap FAPbI3, demonstrating the importance of obtaining phase purity in the fabrication of efficient solar cells. We highlight the importance of the control over the film morphology and composition, which differs substantially when these compounds are vacuum processed. Finally, we demonstrate the vacuum-deposition of triple- and quadruple-cation perovskites, with the aim of obtaining efficient as well as stable perovskite formulations. Avenues to improve the stability and to maximize the open circuit voltage using additives and/or novel charge transport layers will also be discussed.
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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.
Asia-Pacific International Conference on Perovskite, Organic Photovoltaics and Optoelectronics
The 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.
The 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.