Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV23)
DOI: https://doi.org/10.29363/nanoge.hopv.2023.224
Publication date: 30th March 2023
Metal halide perovskite solar cells have reached the recent efficiency breakthrough of 25.6%, higher than silicon polycrystalline photovoltaics. Such fantastic result was only possible due to a precise control and engineering of the morphology, interfaces, defects, and the use of multiple cations in perovskite A-site, as Rb, Cs, MA (methylamonnium), FA (formamidinium) and long alkyl cations as phenylethylammonium (PEA). Dimensionality of perovskite materials can be easily controlled by the choice of the cation in the A site, providing structures from zero (OD), one (1D), two (2D) and three-dimensions (3D), amplifying the use of these materials in lighting, lasers and sensors.
In this presentation, we will summarize important results using in situ experiments to probe the formation of 2D perovskite materials with different organic cations. Dynamics of the formation of these structures and interfaces in solution or solid state, their stability under thermal stress and aggregation, were studied by in situexperiments probing the samples with both X-rays and/or visible radiation. For that, we employed time-resolved grazing incidence wide angle X-ray scattering (GIWAXS), small angle X-Ray scattering (SAXS), high-resolution XRD and PL spectroscopy taken at the Brazilian Synchrotron National Laboratory and Lawrence Berkeley National Laboratory.
Fapesp. Shell, CNPq
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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.
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