State of the art and prospects for halide perovskite nanocrystals

A Dey, J Ye, A De, E Debroye, SK Ha, E Bladt… - ACS …, 2021 - ACS Publications
Metal-halide perovskites have rapidly emerged as one of the most promising materials of the
21st century, with many exciting properties and great potential for a broad range of …

Band-edge exciton in CdSe and other II–VI and III–V compound semiconductor nanocrystals− revisited

PC Sercel, AL Efros - Nano letters, 2018 - ACS Publications
In this Mini Review, we summarize major corrections to the dark–bright exciton theory [Efros
et al. Phys. Rev B 1996, 54, 4843− 4856], which should be used for quantitative description …

Radiative control of dark excitons at room temperature by nano-optical antenna-tip Purcell effect

KD Park, T Jiang, G Clark, X Xu, MB Raschke - Nature nanotechnology, 2018 - nature.com
Excitons, Coulomb-bound electron–hole pairs, are elementary photo-excitations in
semiconductors that can couple to light through radiative relaxation. In contrast, dark …

Exciton fine structure in perovskite nanocrystals

PC Sercel, JL Lyons, D Wickramaratne… - Nano …, 2019 - ACS Publications
The bright emission observed in cesium lead halide perovskite nanocrystals (NCs) has
recently been explained in terms of a bright exciton ground state [Becker et al. Nature 2018 …

Deterministic writing and control of the dark exciton spin using single short optical pulses

I Schwartz, ER Schmidgall, L Gantz, D Cogan, E Bordo… - Physical Review X, 2015 - APS
We demonstrate that the quantum dot-confined dark exciton forms a long-lived integer spin
solid-state qubit that can be deterministically on-demand initiated in a pure state by one …

Radiative recombination from dark excitons in nanocrystals: Activation mechanisms and polarization properties

AV Rodina, AL Efros - Physical Review B, 2016 - APS
We analyze theoretically physical mechanisms responsible for the radiative recombination
of the ground optically passive (“dark”) exciton (DE), which dominates in photoluminescence …

Atomistic theory of dark excitons in self-assembled quantum dots of reduced symmetry

M Zieliński, Y Don, D Gershoni - Physical Review B, 2015 - APS
We use an atomistic model to consider the effect of shape symmetry breaking on the optical
properties of self-assembled InAs/GaAs quantum dots. In particular, we investigate the …

Atomistic theory of emission from dark excitons in self-assembled quantum dots

M Korkusinski, P Hawrylak - Physical Review B—Condensed Matter and …, 2013 - APS
We present atomistic theory of emission from dark excitons in self-assembled quantum dots.
Using the atomistic tight-binding model coupled with the configuration-interaction approach …

Inhibition and enhancement of the spontaneous emission of quantum dots in micropillar cavities with radial-distributed Bragg reflectors

T Jakubczyk, H Franke, T Smolenski, M Sciesiek… - ACS …, 2014 - ACS Publications
We present a micropillar cavity where nondesired radial emission is inhibited. The photonic
confinement in such a structure is improved by implementation of an additional concentric …

Deterministic coherent writing of a long-lived semiconductor spin qubit using one ultrafast optical pulse

I Schwartz, D Cogan, ER Schmidgall, L Gantz, Y Don… - Physical Review B, 2015 - APS
We use one single, few-picosecond-long, variably polarized laser pulse to deterministically
write any selected spin state of a quantum dot confined dark exciton whose life and …