Ultrafast photo-driven charge transfer exciton dynamics in mixed-stack pyrene-perylenediimide single co-crystals
Michele S. Myong, Yue Qi, Charlotte L. Stern, Michael R. Wasielewski
Abstract
Femtosecond transient absorption microscopy of organic donor–acceptor single co-crystals shows that photo-initiated charge transfer exciton diffusion as well as charge recombination rates depend critically on crystal morphology.
Topics & Concepts
Materials scienceFemtosecondUltrafast laser spectroscopyExcitonChemical physicsCharge (physics)PyreneAcceptorAbsorption (acoustics)DiffusionUltrashort pulseSingle crystalPhotochemistryStack (abstract data type)CrystallographyCondensed matter physicsOpticsChemistryOrganic chemistryThermodynamicsLaserProgramming languageComputer scienceQuantum mechanicsComposite materialPhysicsLuminescence and Fluorescent MaterialsPerovskite Materials and ApplicationsOrganic Electronics and Photovoltaics