View mode stretch dot by dot12/24/2023 ![]() ![]() Solid-state infrared-to-visible upconversion sensitized by colloidal nanocrystals. Thermally activated delayed photoluminescence from pyrenyl-functionalized CdSe quantum dots. Controlled assembly of hydrogenase-CdTe nanocrystal hybrids for solar hydrogen production. Colloidal quantum dots as photocatalysts for triplet excited state reactions of organic molecules. Regio- and diastereoselective intermolecular cycloadditions photocatalysed by quantum dots. Ultra-small PbS nanocrystals as sensitizers for red-to-blue triplet-fusion upconversion. Robust photogeneration of H 2 in water using semiconductor nanocrystals and a nickel catalyst. Han, Z., Qiu, F., Eisenberg, R., Holland, P. Sensitizing singlet fission with perovskite nanocrystals. Engineering molecular ligand shells on quantum dots for quantitative harvesting of triplet excitons generated by singlet fission. Control of energy flow dynamics between tetracene ligands and PbS quantum dots by size tuning and ligand coverage. Harnessing singlet exciton fission to break the Shockley–Queisser limit. Optical properties of strongly coupled quantum dot−ligand systems. Semiconductor nanocrystal light absorbers for photon upconversion. Nanocrystals for triplet sensitization: molecular behavior from quantum-confined materials. The rise and future of discrete organic–inorganic hybrid nanomaterials. Our results show that strong coupling between molecules and nanostructures achieved through targeted linking chemistry provides a complementary route for tailoring properties in materials for light-driven applications.īrett, M. By pushing the system to delocalize, we design a photon upconversion system with a higher efficiency (17.2%) and lower threshold intensity (0.5 W cm –2) than that of a corresponding weakly coupled system. However, we show that by converting a chemical linker that covalently binds anthracene molecules to silicon quantum dots from a carbon–carbon single bond to a double bond, we access a strong coupling regime where excited carriers spatially delocalize across both anthracene and silicon. ![]() The electronic coupling between these materials is typically weak, leading photoexcited charge carriers to spatially localize to the dot or to a molecule at its surface. ![]() Hybrid structures formed between organic molecules and inorganic quantum dots can accomplish unique photophysical transformations by taking advantage of their disparate properties. ![]()
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