Panchromatic Light-Absorbing [70]Fullerene-Perylene-BODIPY Triad with Cascade of Energy Transfer as an Efficient Singlet Oxygen Sensitizer.

ABSTRACT: A panchromatic light-absorbing [70]fullerene-perylene-BODIPY triad (C₇₀-P-B) was synthesized and applied as a heavy atom-free organic triplet photosensitizer for photooxidation. The photophysical processes were comprehensively investigated by the methods of steady-state spectroscopy, time-resolved spectroscopy, as well as theoretical calculations. C₇₀-P-B shows a strong absorption ability from 300-620 nm. Efficient cascading intramolecular singlet-singlet energy transfer in C₇₀-P-B was confirmed by the luminescence study. The backward triplet excited state energy transfer from C₇₀ moiety to perylene then occurs to populate ³perylene*. Thus, the triplet excited states of C₇₀-P-B are distributed on

SUBMITTER: Dou L 

PROVIDER: S-EPMC10144093 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature