Proceedings of Asia-Pacific Conference on Perovskite, Organic Photovoltaics&Optoelectronics (IPEROP25)
Publication date: 17th October 2024
Tin perovskite solar cells (PSCs) are emerging as the most sustainable lead-free alternative in the field of thin film photovoltaics. DMSO-free processed tin PSCs are gaining interest due to the adverse effects of DMSO on tin oxidation reducing device stability. However, replacing DMSO with other solvents is challenging due to the rapid crystallization dynamics during tin perovskite film formation, which are even more pronounced in DMSO-free systems. In this study, we modulate the colloidal formation and interaction within perovskite precursors using additive engineering to optimize the crystallization process. Specifically, we employed piperazinium diiodide (PDAI) as a colloidal interaction modulator to arrange larger clusters in perovskite precursor suspension.[1] At the same time we used 4-tert-butyl pyridine (tBP) as a colloidal stabilizer to retard the aggregation process by interacting with Sn-X units, achieving a balanced crystallization rate synergistically.[2] This synergistic approach achieves a balanced crystallization rate, leading to tin perovskite films with higher crystallinity and improved microstructure, as directly observed by in-situ photoluminescence (PL) during real-time monitoring of crystallization during spin-coating. Devices treated with tBP and PDAI exhibited a champion power conversion efficiency of 7.8% and excellent dark stability without any degradation for 3000 hours in N2 glovebox. Our findings provide an advancement in understanding and managing crystallization in DMSO-free solvent-processed tin perovskite solar cells, paving the way for further performance enhancements and broader application in optoelectronic devices.
The authors thank the support of Hysprint laboratory technicians Johannes B., Carola F., Hagen H. and Michel C.. The authors thank support from EMIL Chemistry and SCALA lab at Helmholtz-Zentrum Berlin (HZB). S.Z acknowledges the financial support from China Scholarship Council (CSC). S.Z. and C.F. acknowledge HyPerCells Joint Graduate School of the University of Potsdam and HZB. This work has received funding from the European Union’s Framework Program for Research and Innovation HORIZON EUROPE (2021-2027) under the Marie Skłodowska-Curie Action Postdoctoral Fellowships (European Fellowship) 101061809 HyPerGreen
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.