Istvan Robel

TL;DR: By using bifunctional surface modifiers (SH-R-COOH), CdSe quantum dots (QDs) have been assembled onto mesoscopic TiO(2) films and exhibits a photon-to-charge carrier generation efficiency of 12%.

TL;DR: Femtosecond transient absorption studies indicate that the rate constant for electron transfer from the thermalized s-state of CdSe quantum dots increases with decreasing particle size, which can be easily modulated by controlling the particle size.

TL;DR: By elucidating the role of relative bond strengths within the precursor and the host lattice, this work develops an effective approach for incorporating manganese (Mn) ions into nanocrystals of lead-halide perovskites (CsPbX3, where X = Cl, Br, or I).

TL;DR: This work finds that because of significant charging of quantum dots with extra electrons, Auger recombination greatly impacts both LED efficiency and the onset of efficiency roll-off at high currents, and demonstrates two specific approaches using heterostructured quantum dots.

TL;DR: Spectroscopic properties of Cs-Pb-halide quantum dots are largely similar to those of quantum dots of more traditional semiconductors such as CdSe and PbSe, but some distinctions are observed including an appreciable effect of the halide identity on radiative lifetimes, considerably shorter biexciton Augerlifetimes, and apparent deviation of their size dependence from the "universal volume scaling" previously observed for many traditional nanocrystal systems.