Results 51 to 60 of about 229,722 (351)

Anisotropic nanocrystal superlattices overcoming intrinsic light outcoupling efficiency limit in perovskite quantum dot light-emitting diodes

open access: yesNature Communications, 2022
Controlling the transition-dipole-moment orientation in quantum dot solids at device level has not been achieved before. Here, the authors demonstrated intrinsic light out-coupling enhancement approach to boost the external quantum efficiency up to 25 ...
Sudhir Kumar   +5 more
doaj   +1 more source

Theoretical electronic structure of the cadmium monohalide molecules CdX (X = F, Cl, Br, I)

open access: yesAIP Advances, 2017
The potential energy and dipole moment curves for the lowest electronic states in the representation 2s+1Λ(±) of CdX (X = F, Cl, Br, I) molecules are investigated via complete active space self-consistent field (CASSCF) and multi-reference configuration ...
Khalil Badreddine, Mahmoud Korek
doaj   +1 more source

Transition Dipole Moments and Transition Probabilities of the CN Radical

open access: yesThe Astrophysical Journal Supplement Series, 2018
Abstract This paper studies the transition probabilities of electric dipole transitions between 10 low-lying states of the CN radical. These states are X2Σ+, A2Π, B2Σ+, a4Σ+, b4Π, 14Σ−, 24Π, 14Δ, 16Σ+, and 16Π. The potential energy curves are calculated using the CASSCF method, which is followed by the icMRCI approach with the Davidson ...
Yuan Yin   +3 more
openaire   +2 more sources

Transition Dipole Moments of n = 1, 2, and 3 Perovskite Quantum Wells from the Optical Stark Effect and Many-Body Perturbation Theory.

open access: yesJournal of Physical Chemistry Letters, 2020
Metal halide perovskite quantum wells (PQWs) are quantum and dielectrically confined materials exhibiting strongly bound excitons. The exciton transition dipole moment dictates absorption strength and influences interwell coupling in dipole-mediated ...
Andrew H. Proppe   +10 more
semanticscholar   +1 more source

Adiabatic population transfer between electronic states of LiH molecule in two picosecond laser pulses

open access: yesAIP Advances, 2018
The population transfer of stimulated Raman adiabatic passage (STIRAP) is investigated using a time-dependent quantum wave packet method. The population is transferred from an initial state to a target state through the interaction of the external laser ...
Ying-Yu Niu, Rong Wang
doaj   +1 more source

Interaction induced ferro-electricity in the rotational states of polar molecules

open access: yes, 2010
We show that a ferro-electric quantum phase transition can be driven by the dipolar interaction of polar molecules in the presence a micro-wave field.
A. L. Fetter   +6 more
core   +1 more source

Finite nuclear mass corrections to electric and magnetic interactions in diatomic molecules [PDF]

open access: yes, 2009
In order to interpret precise measurements of molecular properties the finite nuclear mass corrections to the Born-Oppenheimer approximation have to be accounted for. It is shown that they can be obtained systematically in the perturbative approach.
Pachucki, Krzysztof
core   +1 more source

Electric dipole rovibrational transitions in HD molecule

open access: yes, 2008
The rovibrational electric dipole transitions in the ground electronic state of the HD molecule are studied. A simple, yet rigorous formula is derived for the transition rates in terms of the electric dipole moment function $D(R)$, which is calculated in
A. R. W. McKellar   +9 more
core   +1 more source

General Magnetic Transition Dipole Moments for Electron Paramagnetic Resonance [PDF]

open access: yesPhysical Review Letters, 2015
We present general expressions for the magnetic transition rates in beam Electron Paramagnetic Resonance (EPR) experiments of anisotropic spin systems in the solid state. The expressions apply to general spin centers and arbitrary excitation geometry (Voigt, Faraday, and intermediate).
Nehrkorn, J.   +3 more
openaire   +4 more sources

The effects of wetting layer on electronic and optical properties of intersubband P-to-S transitions in strained dome-shaped InAs/GaAs quantum dots

open access: yesAIP Advances, 2014
The authors report on the impact of wetting layer thickness and quantum dot size on the electronic and optical properties of dome-shaped InAs/GaAs quantum dots (QDs) with strained potential.
Mohammadreza Shahzadeh   +1 more
doaj   +1 more source

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