182 citations · 355 across the 8 of their papers we have counts for
8 papers
Photoluminescence in PbS nanocrystal thin films: Nanocrystal density, film morphology and energy transfer
L. Tsybeskov, M. Alam, S. B. Hafiz +4
We show that photoluminescence properties of PbS nanocrystal thin films are directly related to film morphology and nanocrystal density. In densely packed PbS nanocrystal films, lo…
Quantum confinement in Si and Ge nanostructures: Effect of crystallinity
Eric G. Barbagiovanni, David J. Lockwood, Raimundo N. Costa Filho +2
We look at the relationship between the preparation method of Si and Ge nanostructures (NSs) and the structural, electronic, and optical properties in terms of quantum confinement…
Quantum Confinement in Si and Ge Nanostructures
Eric G. Barbagiovanni, David J. Lockwood, Peter J. Simpson +1
We apply perturbative effective mass theory as a broadly applicable theoretical model for quantum confinement (QC) in all Si and Ge nanostructures including quantum wells (QWs), wi…
Auger-mediated radiative recombination in three-dimensional silicon/silicon-germanium nanostructures
E. -K. Lee, D. J. Lockwood, J. -M. Baribeau +3
In a semiconductor heterostructure with type II energy band alignment, the spatial separation between electrons and holes slows down their radiative recombination. With increasing…
Inelastic light scattering by electronic excitations in artificial atoms
Alain Delgado, Augusto Gonzalez, D. J. Lockwood
In the paper, we present theoretical calculations of the cross section for inelastic light scattering by electronic excitations in a quantum dot charged with 42 electrons. The many…
Spin relaxation in quantum dots with random spin-orbit coupling
E. Ya. Sherman, D. J. Lockwood
We investigate the longitudinal spin relaxation arising due to spin-flip transitions accompanied by phonon emission in quantum dots where the strength of the Rashba spin-orbit coup…