Publication date: 22nd July 2026
Lead halide perovskite nanocrystals (LHP NCs) [1] - the latest generation of colloidal quantum dots (QDs) - possess dynamic, entropically stabilized soft lattices and electronically benign surfaces that, remarkably, do not compromise their textbook semiconductor optical quality. The compositional diversity of APbX3 comprises cesium ions on A-site as the only ones forming fully inorganic perovskite lattice of this kind, whereas a range of organic cations readily form this lattice, methylammonium (MA), formamidinium (FA), aziridinium (AZ) [2-4]. The surface chemistry of perovskite QDs is paramount for instilling (photo)chemical stability. We will review four distinct cases of capping ligands, based on their binding tightness and dynamicity, emphasizing synthetic phospholipids as the best-performing [5]. Structurally dynamic FA/MA/AZ-based QDs, stabilized with zwitterions, turned out to be near-perfect (blinking free, saturable, high single-photon purity) single-photon sources (incoherent) at room temperatures [6], as attributed to the dynamic wavefunction localization. Beyond photophysics, LHP QDs have recently proven to be efficient photocatalysts, mediating organic redox transformations that remain inaccessible to conventional photocatalysts [7], and which properties are governed by the dynamic surface-ligand interface [8]. We then demonstrate observation of a single photocatalyst via micro-photoluminescence measurements of its single-photon emission [9], addressing static and temporal heterogeneity in photocatalytic function. The presentation will summarize the contributions of my interdisciplinary team and our international collaborators, whose names will be acknowledged in the presentation and accompanying notes.
1. L. Protesescu et al. Nano letters 2015, 15, 3692–3696
2. Q. Akkermann et al. Science, 2022, 377, 1406-1412
3. V. Morad et al. J. Am. Chem. Soc., 2025, 147, 8, 6795–6804
4. M. Bodnarchuk et al. ACS Nano, 2024, 18, 7, 5684–5697
5. V. Morad et al. Nature, 2024, 626, 542–548
6. L. Feld et al. Nature Comm., 2026, 17, 1974.
7. V. M. Amberg et al. J. Am. Chem. Soc., 2025, 147, 10, 8548–8558
8. Y. Sahin et al. Nano Lett., 2026, 26, 9, 3107–3116
9. L. Feld et al. 2026 in revision, https://doi.org/10.26434/chemrxiv.10001851/v1
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.