Statistical Analysis of Photoluminescence Decay Kinetics in Quantum Dot Ensembles: Effects of Inorganic Shell Composition and Environment
João R. Martins, Victor Krivenkov, César Bernardo, Pavel Samokhvalov, Igor Nabiev, Yury P. Rakovich, M. I. Vasilevskiy
Abstract
ratio analysis are presented, namely, (i) the effect of the inorganic shell composition and thickness of the core-shell QDs, (ii) QD systems with Förster resonance energy transfer (FRET) decay channels, and (iii) system of QDs near a layer of plasmonic nanoparticles. The proposed method is shown to be efficient for the detection of slight changes in the PL kinetics, being time-efficient and requiring low computing power for performing the analysis. It can also be a powerful tool to identify the most appropriate physically meaningful theoretical decay function, which best describes the systems under study.
Topics & Concepts
PhotoluminescenceQuantum dotKineticsFörster resonance energy transferPhoton countingExponential decayMaterials scienceNanoparticleNanocrystalChemical physicsPhotonChemistryMolecular physicsNanotechnologyPhysicsOptoelectronicsFluorescenceOpticsQuantum mechanicsQuantum Dots Synthesis And PropertiesGold and Silver Nanoparticles Synthesis and ApplicationsChalcogenide Semiconductor Thin Films