Proceedings of MATSUS23 & Sustainable Technology Forum València (STECH23) (MATSUS23)
DOI: https://doi.org/10.29363/nanoge.matsus.2023.065
Publication date: 22nd December 2022
Photovoltaic and solar fuels technologies rely upon the intentional movement of charge carriers (i.e. electrons and holes) and/or energy (i.e. excitons) in prescribed directions to convert sunlight into electricity or fuels. Two-dimensional semiconductors have several advantages for PV and (photo)catalytic technologies, due to their large absorption coefficients, high mobilities for charge carriers and excitons, and catalytic activity for important fuel-forming reactions. To realize the full potential of 2D nanomaterials and related heterostructures for sustainable energy technologies, fundamental studies are needed to probe the key photochemical processes that occur upon photon absorption, including exciton diffusion and dissociation, interfacial charge and energy transfer, and charge recombination. In this presentation, I will highlight our ongoing studies probing charge and energy transfer across heterojunctions formed between monolayer transition metal dichalcogenides (TMDCs) and other nanoscale semiconductors such as semiconducting single-walled carbon nanotubes, small molecules, and nanocrystals. Appropriate tuning of the interfacial band alignment can enable rapid exciton dissociation and exceptionally long-lived charge-separated states that are essential for PV and catalytic applications. Tuning the binding motif of molecular species between van der Waals association and covalent bonds can also influence the mechanisms of interfacial charge/energy transfer. If time permits, I will also discuss how certain 2D nanomaterials can facilitate charge/energy transfer while simultaneously blocking undesired ion movement across the heterojunction.
nanoGe is a prestigious brand of successful science conferences that are developed along the year in different areas of the world since 2009. Our worldwide conferences cover cutting-edge materials topics like perovskite solar cells, photovoltaics, optoelectronics, solar fuel conversion, surface science, catalysis and two-dimensional materials, among many others.
Previously nanoGe Spring Meeting (NSM) and nanoGe Fall Meeting (NFM), MATSUS is a multiple symposia conference focused on a broad set of topics of advanced materials preparation, their fundamental properties, and their applications, in fields such as renewable energy, photovoltaics, lighting, semiconductor quantum dots, 2-D materials synthesis, charge carriers dynamics, microscopy and spectroscopy semiconductors fundamentals, etc.
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.
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.