Publication date: 16th July 2025
The surface topography of the lead halide perovskite layer is a crucial aspect that influences the performance of perovskite solar cells (PSCs). In this work, two different quenching approaches for the crystallization of wide-bandgap perovskite films are investigated: antisolvent quenching and the gas quenching. Both methods, aimed at removing the solvent of the precursor solution and initiate the perovskite nucleation, differ mechanistically and result in different rates of crystallization, which cause surface topographical irregularities, in the form of elongated and elevated structures on the films, termed “wrinkles”. This study shows antisolvent-quenched perovskite films exhibit a higher density of wrinkles than the gas-quenched counterparts. Pinholes were found along the wrinkles, thus a higher density of wrinkles leads to more pinholes and to more defective surface topography. The wrinkles also make the surface rougher, hindering a homogeneous contact with the adjacent layer and reducing the overall performance of the solar cells. By comparing the two different quenching methods, we obtain insight into the formation of the wrinkles and their effects on the optoelectronic properties of the perovskite films. We identify the gas quenching method as a way to reduce the wrinkle density to achieve better photovoltaic performance in comparison to the antisolvent method.
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.