Nonequilibrium Lattice Dynamics in Monolayer MoS2

F Caruso - The Journal of Physical Chemistry Letters, 2021 - ACS Publications
The coupled nonequilibrium dynamics of electrons and phonons in monolayer MoS2 is
investigated by combining first-principles calculations of the electron–phonon and phonon …

Dissecting interlayer hole and electron transfer in transition metal dichalcogenide heterostructures via two-dimensional electronic spectroscopy

VR Policht, M Russo, F Liu, C Trovatello, M Maiuri… - Nano Letters, 2021 - ACS Publications
Monolayer transition metal dichalcogenides (ML-TMDs) are two-dimensional
semiconductors that stack to form heterostructures (HSs) with tailored electronic and optical …

Optically accessible long-lived electronic biexcitons at room temperature in strongly coupled H-aggregates

S Sohoni, I Ghosh, GT Nash, CA Jones… - Nature …, 2024 - nature.com
Photon absorption is the first process in light harvesting. Upon absorption, the photon
redistributes electrons in the materials to create a Coulombically bound electron-hole pair …

Atomlike interaction and optically tunable giant band-gap renormalization in large-area atomically thin

SK Bera, M Shrivastava, K Bramhachari, H Zhang… - Physical Review B, 2021 - APS
Coulomb interactions in atomically thin transition metal dichalcogenides can be dynamically
engineered by exploiting the dielectric environment to control the optical and electronic …

Sub-10 fs Intervalley Exciton Coupling in Monolayer MoS2 Revealed by Helicity-Resolved Two-Dimensional Electronic Spectroscopy

LT Lloyd, RE Wood, F Mujid, S Sohoni, KL Ji, PC Ting… - ACS …, 2021 - ACS Publications
The valley pseudospin at the K and K′ high-symmetry points in monolayer transition metal
dichalcogenides (TMDs) has potential as an optically addressable degree of freedom in next …

Ultrafast Nonadiabatic Phonon Renormalization in Photoexcited Single-Layer MoS2

N Girotto, F Caruso, D Novko - The Journal of Physical Chemistry …, 2023 - ACS Publications
Comprehending nonequilibrium electron–phonon dynamics at the microscopic level and at
short time scales is one of the main goals in condensed matter physics. Effective …

Ultrafast excitation transfer in Cy5 DNA photonic wires displays dye conjugation and excitation energy dependency

RJ Mazuski, SA Díaz, RE Wood, LT Lloyd… - The Journal of …, 2020 - ACS Publications
DNA scaffolds enable base-pair-specific positioning of fluorescent molecules, allowing for
nanometer-scale precision in controlling multidye interactions. Expanding on this concept …

DNA scaffold supports long-lived vibronic coherence in an indodicarbocyanine (Cy5) dimer

SH Sohail, JP Otto, PD Cunningham, YC Kim… - Chemical …, 2020 - pubs.rsc.org
Vibronic coupling between pigment molecules is believed to prolong coherences in
photosynthetic pigment–protein complexes. Reproducing long-lived coherences using …

Time-dependent screening explains the ultrafast excitonic signal rise in 2D semiconductors

V Smejkal, F Libisch, A Molina-Sanchez, C Trovatello… - ACS …, 2020 - ACS Publications
We calculate the time evolution of the transient reflection signal in an MoS2 monolayer on a
SiO2/Si substrate using first-principles out-of-equilibrium real-time methods. Our simulations …

Direct measurement of biexcitons in monolayer WS2

MA Conway, JB Muir, SK Earl, M Wurdack… - 2D …, 2022 - iopscience.iop.org
The optical properties of atomically thin transition metal dichalcogenides are dominated by
Coulomb bound quasi-particles, such as excitons, trions, and biexcitons. Due to the number …