13 citations · 13 across the 1 of their papers we have counts for
5 papers
Acceptor and donor impurities in GaN nanocrystals
C. Echeverría-Arrondo, J. Pérez-Conde, A. K. Bhattacharjee
We investigate acceptor and donor states in GaN nanocrystals doped with a single substitutional impurity. Quantum dots (QD's) of zinc-blende structure and spherical shape are consi…
CdS/HgS/CdS Quantum Dot Quantum Wells: A Tight-binding Study
J. Perez-Conde, A. K. Bhattacharjee
We study the electronic properties of spherical quantum dot quantum well nanocrystals within a symmetry-based tight-binding model. In particular, the influence of a concentric mono…
Photoluminescence Stokes shift and exciton fine structure in CdTe nanocrystals
J. Perez-Conde, A. K. Bhattacharjee, M. Chamarro +3
The photoluminescence spectra of spherical CdTe nanocrystals with zincblende structure are studied by size-selective spectroscopic techniques. We observe a resonant Stokes shift of…
Exciton states and optical properties of CdSe nanocrystals
J. Perez-Conde, A. K. Bhattacharjee
The optical spectra of CdSe nanocrystals up to 55 A in diameter are analyzed in a wide range of energies from the fine structure of the low-energy excitations to the so-called high…
Electronic structure of CdTe nanocrystals: A tight-binding study
J. Perez-Conde, A. K. Bhattacharjee
We present a symmetry-based calculation of the electronic structure of a compound semiconductor quantum dot (QD) in the sp^3s* tight-binding model including the spin-orbit interact…