Publication date: 15th December 2025
Next-generation III–V quantum dots (QDs) with enhanced optoelectronic properties and stability are expected to emerge from a complete understanding and control of their surface characteristics—specifically their three-dimensional (3D) atomic configuration, chemical composition, and bonding interactions. Although electron tomography is among the most powerful techniques for reconstructing the 3D atomic structure of nanomaterials, its application to III–V QDs remains challenging, as these systems are highly susceptible to structural degradation under prolonged electron-beam exposure. As a result, current 3D structural models of III–V QDs are typically inferred from 2D low-dose annular dark-field scanning transmission electron microscopy (ADF-STEM) projections through visual comparison and iterative manual adjustments.
To move beyond this qualitative and time-consuming approach, we developed a highly efficient AI-driven workflow that integrates quantitative transmission electron microscopy with molecular modeling. In this talk, we show how this combined experimental–theoretical protocol enables the generation of highly accurate and experimentally validated 3D models of novel InP QDs, including reliable reconstructions of their surface and interface atomic configurations.
J.Z. acknowledges FWO grant 12AA526N
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.