Dissecting Interlayer Hole and Electron Transfer in Transition Metal Dichalcogenide Heterostructures via Two-Dimensional Electronic Spectroscopy
Veronica R. Policht, Mattia Russo, Fang Liu, Chiara Trovatello, Margherita Maiuri, Yusong Bai, Xiaoyang Zhu, Stefano Dal Conte, Giulio Cerullo
Abstract
HS where we unambiguously time resolve both interlayer hole and electron transfer with 34 ± 14 and 69 ± 9 fs time constants, respectively. We simultaneously resolve additional optoelectronic processes including band gap renormalization and intralayer exciton coupling. This study demonstrates the advantages of 2DES in comprehensively resolving ultrafast processes in TMD-HS, including ICT.
Topics & Concepts
ExcitonHeterojunctionSpectroscopyUltrashort pulseMonolayerSemiconductorUltrafast laser spectroscopyElectron transferMaterials scienceElectronAtomic electron transitionTransition metalCondensed matter physicsElectronic structureOptoelectronicsChemistryNanotechnologyPhysicsOpticsSpectral lineLaserPhotochemistryAstronomyCatalysisBiochemistryQuantum mechanics2D Materials and ApplicationsPerovskite Materials and ApplicationsQuantum Dots Synthesis And Properties