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3D Localized Trions in Monolayer WSe2 in a Charge Tunable van der Waals Heterostructure
Monolayer transition metal dichalcogenides (TMDCs) have recently emerged as a host
material for localized optically active quantum emitters that generate single photons. Here …
material for localized optically active quantum emitters that generate single photons. Here …
Excitons
Optical band-to-band absorption can produce an electron and a hole in close proximity
which attract each other via Coulomb interaction and can form a hydrogen-like bond state …
which attract each other via Coulomb interaction and can form a hydrogen-like bond state …
Vanishing fine structure splitting in highly asymmetric InAs/InP quantum dots without wetting layer
Contrary to simplified theoretical models, atomistic calculations presented here reveal that
sufficiently large in-plane shape elongation of quantum dots can not only decrease, but even …
sufficiently large in-plane shape elongation of quantum dots can not only decrease, but even …
Exploiting underlying crystal lattice for efficient computation of coulomb matrix elements in multi-million atoms nanostructures
Atomistic modeling of nanostructures often leads to computationally challenging problems
involving millions of atoms and tens of thousands of Coulomb matrix elements. In our …
involving millions of atoms and tens of thousands of Coulomb matrix elements. In our …
Linear scaling approach for atomistic calculation of excitonic properties of 10-million-atom nanostructures
Numerical calculations of excitonic properties of novel nanostructures, such as nanowire
and crystal phase quantum dots, must combine atomistic accuracy with an approachable …
and crystal phase quantum dots, must combine atomistic accuracy with an approachable …
Mechanism and dynamics of biexciton formation from a long-lived dark exciton in a CdTe quantum dot
We study the biexciton formation process in a single CdTe/ZnTe quantum dot. Consistently
with previous studies, we find subquadratic dependence of the biexciton photoluminescence …
with previous studies, we find subquadratic dependence of the biexciton photoluminescence …
[HTML][HTML] Evolution of InAs quantum dots and wetting layer on GaAs (001): Peculiar photoluminescence near onset of quantum dot formation
InAs quantum dots (QDs) have been grown on a GaAs (001) substrate in the subcritical
region of InAs coverage for transition from a 2-dimensional (2D) to a 3-dimensional growth …
region of InAs coverage for transition from a 2-dimensional (2D) to a 3-dimensional growth …
Atomistic theory of excitonic fine structure in InAs/InP nanowire quantum dot molecules
Nanowire quantum dots have peculiar electronic and optical properties. In this work we use
atomistic tight binding to study excitonic spectra of artificial molecules formed by a double …
atomistic tight binding to study excitonic spectra of artificial molecules formed by a double …
Efficient computation of coulomb and exchange integrals for multi-million atom nanostructures
Atomistic modeling of nanostructures such as quantum dots or nanowires often involves
numbers of atoms reaching and even exceeding well beyond 1 million. Such a large …
numbers of atoms reaching and even exceeding well beyond 1 million. Such a large …
Magnetobiexciton in strongly oblate ellipsoidal quantum dot
The theoretical investigation of biexciton in ellipsoidal quantum dot in the presence of the
magnetic field is done in the framework of the variational method. The dependencies of the …
magnetic field is done in the framework of the variational method. The dependencies of the …