53 citations · 234 across the 16 of their papers we have counts for
7 papers · 1 filter
Quantifying the contribution of material and junction resistances in nano-networks
Cian Gabbett, Adam G. Kelly, Emmet Coleman +18
Networks of nanowires and nanosheets are important for many applications in printed electronics. However, the network conductivity and mobility are usually limited by the inter-par…
Topological Wannier excitons in bismuth chalcogenide nanosheets I: Single-particle properties
L. Maisel Licerán, F. García Flórez, Laurens D. A. Siebbeles +1
We analyze the topology and dispersion of bulk Wannier excitons in nanosheets of topological insulators in the family of bismuth chalcogenides. Our main finding is that excitons al…
Observation of the quantized motion of excitons in CdSe nanoplatelets
Michele Failla, Francisco García Flórez, Bastiaan B. V. Salzmann +3
We show that the finite lateral sizes of ultrathin CdSe nanoplatelets strongly affect both their photoluminescence and optical absorption spectra. This is in contrast to the situat…
Biexcitons in Highly Excited CdSe Nanoplatelets
F. García Flórez, Laurens D. A. Siebbeles, H. T. C. Stoof
We present the phase diagram of free charges (electrons and holes), excitons, and biexcitons in highly excited CdSe nanoplatelets that predicts a crossover to a biexciton-dominated…
Effects of Two-Dimensional Material Thickness and Surrounding Dielectric Medium on Coulomb Interactions and Excitons
F. García Flórez, Laurens D. A. Siebbeles, H. T. C. Stoof
We examine the impact of quantum confinement on the interaction potential between two charges in two-dimensional semiconductor nanosheets in solution. The resulting effective poten…
Explaining Observed Stability of Excitons in Highly Excited CdSe Nanoplatelets
F. García Flórez, Aditya Kulkarni, Laurens D. A. Siebbeles +1
Two-dimensional electron-hole gases in colloidal semiconductors have a wide variety of applications. Therefore, a proper physical understanding of these materials is of great impor…
Fast and efficient photodetection in nanoscale quantum-dot junctions
Ferry Prins, Michele Buscema, Johannes S. Seldenthuis +8
We report on a photodetector in which colloidal quantum-dots directly bridge nanometer-spaced electrodes. Unlike in conventional quantum-dot thin film photodetectors, charge mobili…