Proceedings of Online nanoGe Fall Meeting 20 (OnlineNFM20)
Publication date: 4th October 2020
Recent advancements in perovskite solar cell performance were achieved by stabilizing the α-phase of FAPbI3 perovskites in nip-type cell architectures, enabling power conversion efficiencies (PCEs) of 25.2%. However, these advancements could not be directly translated into similar PCE improvements in pin-type perovskite cells which limits the possibilities to create highly efficient and stable perovskite photovoltaic cells. We fabricated a high-quality double-cation perovskite (MA0.07FA0.93PbI3) with low bandgap energy (1.54 eV) using a two-step approach on a standard p-type polymer (PTAA). The fabricated neat perovskite films exhibit large grains ( 1 µm) allowing to reach external photoluminescence quantum yields (PLQYs) of 20% with an unprecedented charge carrier lifetime of over 18 µs without further passivation. The exceptional opto-electronic quality of the neat material was translated into high efficiency pin-type cells with PCEs of up to 22.5% with improved stability under illumination. The low-gap cells (1.54 eV) stand out by their exceptional fill factors of 83% due to reduced charge transport losses and high short-circuit currents ( 24 mAcm-2). Using intensity dependent QFLS measurements, we quantify an implied PCE of 28.4% in the neat material which can be realized upon minimizing interfacial recombination and a further improvement of charge extraction.
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.