Publication date: 15th December 2025
Recent developments in the synthesis of perovskite nanoplatelets (NPLs) have made them promising candidates for narrow-emissive nanomaterials. The major obstacle to their commercialization is the poor stability. Dynamic ligand binding, combined with the ionic nature of the lattice, causes most perovskite NPLs to degrade within a week. Amines play an indispensable role in NPL synthesis: they provide steric effects that enable anisotropic growth and serve as surface passivating agents, but they are also the main culprit behind the instability. Compared with other ligands, amine ligands dissociate more readily from the NPL surface, promoting aggregation, which compromises quantum confinement and emission purity. In this talk, we will present two complementary approaches to replacing and eliminating ammonium ligands during NPL synthesis. One approach uses a post-synthetic treatment to partially substitute the ammonium ligands with metal cations. The other approach renovates the ligand pair chemistry by employing organosulfonates as the sole ligands, providing both anisotropic growth and effective surface passivation. These amine-reduced or amine-free NPLs exhibit significantly improved stability compared with conventional NPLs, revealing a key strategy for advancing NPLs toward commercialization.
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.