[HTML][HTML] A comparative review of time-resolved x-ray and electron scattering to probe structural dynamics

Y Lee, KY Oang, D Kim, H Ihee - Structural Dynamics, 2024‏ - pubs.aip.org
The structure of molecules, particularly the dynamic changes in structure, plays an essential
role in understanding physical and chemical phenomena. Time-resolved (TR) scattering …

Strongly Confined CsPbBr3 Quantum Dots as Quantum Emitters and Building Blocks for Rhombic Superlattices

SC Boehme, MI Bodnarchuk, M Burian, F Bertolotti… - ACS …, 2023‏ - ACS Publications
The success of the colloidal semiconductor quantum dots (QDs) field is rooted in the precise
synthetic control of QD size, shape, and composition, enabling electronically well-defined …

Breaking the size limitation of nonadiabatic molecular dynamics in condensed matter systems with local descriptor machine learning

D Liu, B Wang, Y Wu, AS Vasenko… - Proceedings of the …, 2024‏ - pnas.org
Nonadiabatic molecular dynamics (NA-MD) is a powerful tool to model far-from-equilibrium
processes, such as photochemical reactions and charge transport. NA-MD application to …

Robust excitonic light emission in 2D tin halide perovskites by weak excited state polaronic effect

H Zhou, Q Feng, C Sun, Y Li, W Tao, W Tang… - Nature …, 2024‏ - nature.com
Abstract 2D perovskites hold immense promise in optoelectronics due to their strongly
bound electron-hole pairs (ie, excitons). While exciton polaron from interplay between …

Investigation of the octahedral network structure in Formamidinium lead bromide nanocrystals by low-dose scanning transmission electron microscopy

NJ Schrenker, T Braeckevelt, A De Backer… - Nano Letters, 2024‏ - ACS Publications
Metal halide perovskites (MHP) are highly promising semiconductors. In this study, we focus
on FAPbBr3 nanocrystals, which are of great interest for green light-emitting diodes …

Extreme Electron‐Photon Interaction in Disordered Perovskites

SS Kharintsev, EI Battalova, IA Matchenya… - Advanced …, 2024‏ - Wiley Online Library
The interaction of light with solids can be dramatically enhanced owing to electron‐photon
momentum matching. This mechanism manifests when light scattering from nanometer …

Organic Ligand Engineering for Tailoring Electron–Phonon Coupling in 2D Hybrid Perovskites

Z Ou, C Wang, ZG Tao, Y Li, Z Li, Y Zeng, Y Li… - Nano Letters, 2024‏ - ACS Publications
In the emerging two-dimensional organic–inorganic hybrid perovskites, the electronic
structures and carrier behaviors are strongly impacted by intrinsic electron–phonon …

The Impact of Partial Carrier Confinement on Stimulated Emission in Strongly Confined Perovskite Nanocrystals

P Geiregat, O Erdem, M Samoli, K Chen, JM Hodgkiss… - ACS …, 2024‏ - ACS Publications
Semiconductor lead halide perovskites are excellent candidates for realizing low threshold
light amplification due to their tunable and highly efficient luminescence, ease of processing …

Electronic Structure of Biexcitons in Metal Halide Perovskite Nanoplatelets

JI Climente, JL Movilla, J Planelles - The Journal of Physical …, 2024‏ - ACS Publications
A theoretical description of biexcitons in metal halide perovskite nanoplatelets is presented.
The description is based on a variational effective mass model, including polaronic effects …

Large exciton polaron formation in 2D hybrid perovskites via time-resolved photoluminescence

S Hurtado Parra, DB Straus, BT Fichera, N Iotov… - ACS …, 2022‏ - ACS Publications
We find evidence for the formation and relaxation of large exciton polarons in 2D organic–
inorganic hybrid perovskites. Using ps-scale time-resolved photoluminescence within the …