Intraband dynamics of mid-infrared HgTe quantum dots
M. Ruppert, Hanh Bui, Laxmi Kishore Sagar, Pieter Geiregat, Zeger Hens, Gabriel Bester, Nils Huse
Abstract
Femtosecond pump–probe spectroscopy reveals ultrafast carrier dynamics in mid-infrared (MIR) colloidal HgTe nanoparticles with a bandgap of 2.5 μm at a mean energy dissipation rate of 0.36 eV ps −1 irrespective of excitation wavelength.
Topics & Concepts
PhotoexcitationFemtosecondExcited stateRelaxation (psychology)ExcitonMaterials scienceBand gapUltrashort pulseAtomic physicsIonizationInfraredPhoton energyExcitationPseudopotentialMultiple exciton generationMolecular physicsQuantum dotPhotonCondensed matter physicsOptoelectronicsChemistryPhysicsLaserOpticsIonSocial psychologyOrganic chemistryPsychologyQuantum mechanicsQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsGold and Silver Nanoparticles Synthesis and Applications