Taek Rim Kim

Ultrafast Radiative Recombination of Singlet Excitons in Conjugated Polymer Aggregates Modulated by the Intrachain Dissociation–Interchain Delocalization Competition

Abstract We readily modulated relaxation pathways of singlet (S1) excitons in push–pull conjugated polymer (CP, D18) aggregates by controlling the spin-coating process. Transient absorption spectroscopy results reveal that intrachain (localized) S1 excitons are efficiently conver...