Proceedings of International Conference on Hybrid and Organic Photovoltaics (HOPV22)
Publication date: 20th April 2022
Perovskite-based tandems have been progressing rapidly in recent years and the 30% efficiency milestone is about to be conquered. However, higher efficiencies can be achieved by further exploiting the multi-junction concept beyond tandems. Triple junction silicon/perovskite/perovskite devices, with an efficiency potential >35%, are promising in this regard. Still, developping a stable and efficient low bandgap perovskite such as FAPbI3-based perovskite (FA: formamidinium) as a mid-cell for this purpose remains challenging. Herein, FAPbI3-based perovskite films were synthesized via a two-step deposition method combining an evaporation and a solution process to produce conformal coatings (also on textured silicon). The thick perovskite films (~800 nm) show high crystallinity with domain sizes and a roughness of about 1 µm and 65 nm, respectively. The films also reveal high absorptance above the bandgap of 1.51 eV, a value ideal for a triple-junction mid-cell. Moreover, perovskite films deposited on indium tin oxide/self-assembled-monolayer hole transport material (ITO/SAM) stack show a photoluminescence quantum yield of 0.2%, which highlights the high quality of the film and should limit open circuit voltage losses due to non-radiative recombination to about 160 meV. Planar ITO/MeO-2PACz/Perovskite/C60/SnOx/Ag devices display an J-V efficiency >20% (JSC >23.50 mA/cm2, VOC >1.03 V, FF >83% on 0.1 cm2) and stabilized maximum power point tracking (MPPT) output of 19.7%. These results highlight the suitability of FAPbI3-based perovskite films for high-efficiency triple-junction phovoltaics.
Keywords: FAPbI3-based perovskite, Evaporation-solution deposition, Triple-junctions, p-i-n configuration.
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No. 101026729.
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.
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.