Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV23)
DOI: https://doi.org/10.29363/nanoge.hopv.2023.132
Publication date: 30th March 2023
In the future production of energy will strongly rely on direct light-to-electricity transformation. For the foreseeable future Si-based technologies could be adequate, however, for the further progress higher efficiencies, simpler fabrication and lower costs are needed. Recently significant progress was made in perovskite-based and organic photovoltaics which promise benefits of low cost, high efficiency and large versatility and can potentially be manufactured in a cost-effective fashion. One of the possible pathways to boost the performance and stability of solar cells is improvement in the efficiency of carrier extraction by corresponding charge-transport layers, key components in modern optoelectronic devices.
In our work we have proposed a new way to form a charge selective layer by utilizing the ability of certain organic materials to spontaneously form a monolayer on various surfaces. Use of the carbazole chromophore provides good selectivity for holes, while phosphonic acid group ensures strong binding to the substrate, for example metal oxides.
While initially this idea was mostly driven by scientific curiosity, soon it became clear that it can compete with conventional polymeric and small molecule hole transporting materials. The full potential was demonstrated in various tandem technologies, where world records were achieved (Si/Perovskite [1], CIGS/Perovskite [2], Perovskite/OPV [3]). In addition, this technology allowed to achieve one of the highest efficiencies for OPV [4].
Co-funded by the European Union under the Horizon Europe grant 101084251 (PEPPERONI).
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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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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.
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