Publication date: 22nd July 2026
Halide perovskite nanocrystals are excellent materials for light-emitting devices and hold promise for quantum information technologies as well. Isovalent transition metal doping has been shown to further enhance luminescence yields, yet the underlying mechanism had been previously unclear.
Using transient optical spectroscopy, I will first show that such luminescence efficiency gains result from reduced nonradiative losses but also, surprisingly, from enhanced radiative rates upon doping [1]. I will explain these observations in the context of local lattice periodicity breaking and subsequent localization effects, and generalize these mechanisms for Mn, Zn, and Ni doping [2].
Then, I will introduce a new ambient room temperature synthesis route, giving easy access to controlled doping of Mn, Ni, or Zn into CsPbX3nanocrystals (with X = Cl, Br, I) across various sizes, including for the first time the doping of small, truly confined nanocrystals, which had been inaccessible using hot-injection approaches so far – with profound consequences for the light-emitting properties of the resulting materials [3].
Time permitting, I will conclude with the (spin-)photophysics of new nanocrystal materials investigated in our lab [4].
[1] J. Am. Chem. Soc. 2021, 143, 23, 8647–8653
[2] J. Am. Chem. Soc. 2022, 144, 34, 15862–15870
[3] J. Am. Chem. Soc. 2025, 147, 19, 16536–16544
[4] Unpublished results 2026
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.