Publication date: 15th May 2025
Strong light-matter coupling to form polaritons has gained significant attention for its applications in materials engineering, optoelectronics, and beyond. The combined properties of their underlying states allow for numerous advantages such as delocalization over long distances, room-temperature Bose−Einstein condensation, and tunability of energy states. Few exciton-polariton systems, however, reach into the UV, and identifying ideal materials that possess large oscillator strengths, large exciton binding energies, ease of processing, and that are stable for device integration has proven challenging. Here, we demonstrate that CdS magic-size clusters (MSCs) combine all these traits. Simple solution processing in metallic Fabry−Perot (FP) cavities enables the MSCs to exhibit room-temperature strong coupling, as demonstrated by the square root dependence of Rabi splitting on chromophore concentration. Rabi splitting as large as 390 meV can be achieved, with emission from polariton states spanning from 3.07 eV (403 nm) to 3.64 eV (340 nm). When Rabi splittings are normalized by the excitonic line width, this system is comparable with high-performing systems in the visible range and surpasses reported UV polariton systems. The strong UV absorption of these MSCs establishes a platform to develop stable polaritonic devices with tunability across the near-UV.
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.