Dynamic Quenching of Triplet Excitons in Single Conjugated Polymer Chains

URN to cite this document:: urn:nbn:de:bvb:355-epub-438661
DOI to cite this document:: 10.5283/epub.43866

Schedlbauer, Jakob ; Scherf, Ullrich ; Vogelsang, Jan

; Lupton, John M.

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Date of publication of this fulltext: 08 Oct 2020 08:07

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Abstract

By measuring the fluorescence photon statistics of single chains of a conjugated polymer, we determine the lifetime of the metastable dark state, the triplet exciton. The single molecule emits single photons one at a time, giving rise to photon antibunching. These photons appear bunched in time over longer time scales because of excursions to the triplet dark state. Remarkably, this triplet ...