Thickness-dependent ultrafast charge-carrier dynamics and coherent acoustic phonon oscillations in mechanically exfoliated PdSe<sub>2</sub> flakes
Changfu Huo, Rui Wen, Xiao‐Qing Yan, De‐Kang Li, Kaixuan Huang, Yizhi Zhu, Qiannan Cui, Chunxiang Xu, Zhibo Liu, Jianguo Tian
Abstract
We investigate the photoexcited–carrier dynamics and coherent acoustic phonon oscillations in mechanically exfoliated PdSe 2 flakes with a thickness ranging from 10.6 nm to 54 nm using time-resolved transient reflection spectroscopy.
Topics & Concepts
PhononUltrashort pulseMaterials scienceDynamics (music)SpectroscopyCharge carrierTransient (computer programming)Reflection (computer programming)Condensed matter physicsMolecular physicsOpticsChemical physicsPhysicsOptoelectronicsLaserAcousticsComputer scienceProgramming languageOperating systemQuantum mechanics2D Materials and ApplicationsPerovskite Materials and ApplicationsThermal properties of materials