Multidimensional coherent spectroscopy reveals triplet state coherences in cesium lead-halide perovskite nanocrystals
Albert Liu, Diogo B. Almeida, Luiz G. Bonato, Gabriel Nagamine, Luiz Fernando Zagonel, Ana F. Nogueira, Lázaro A. Padilha, Steven T. Cundiff
Abstract
NC ensemble. Picosecond time scale dephasing times are measured for both triplet and inter-triplet coherences, from which we infer a unique exciton fine structure level ordering composed of a dark state energetically positioned within the bright triplet manifold.
Topics & Concepts
Perovskite (structure)HalideSpectroscopyNanocrystalCaesiumTriplet stateMaterials scienceChemical physicsChemistryPhysicsAtomic physicsNanotechnologyInorganic chemistryCrystallographyExcited stateQuantum mechanicsPerovskite Materials and ApplicationsQuantum Dots Synthesis And PropertiesSolid-state spectroscopy and crystallography