Fluorescence intermittency originates from reclustering in two-dimensional organic semiconductors
Journal
Nature Communications
Journal Volume
8
Pages
14521
Date Issued
2017
Author(s)
Abstract
domains. This reclustering generates fluctuations in the number/size of emissive graphenic nanoclusters wherein multiscale modelling captures essential experimental aspects of reduced graphene oxide's absorption/emission trajectories, while simultaneously connecting them to the underlying photochemistry responsible for graphene oxide's reduction. These simulations thus establish causality between currently unexplained, long timescale emission intermittency in a quantum mechanical fluorophore and identifiable chemical reactions that ultimately lead to switching between on and off states.
Type
journal article