Physical mechanism of photoinduced intermolecular charge transfer enhanced by fluorescence resonance energy transfer
Physical Chemistry Chemical Physics2018Vol. 20(19), pp. 13558–13565
Citations Over TimeTop 10% of 2018 papers
Huan Zong, Jiangcai Wang, Xijiao Mu, Xuefeng Xu, Jing Li, Xiaoyuan Wang, Feixiang Long, Jiaxi Wang, Mengtao Sun
Abstract
In this paper, photoinduced intermolecular charge transfer (PICT) and fluorescence resonance energy transfer (FRET) in donor-acceptor systems have been investigated experimentally and theoretically. We attempt to investigate the natural relationship between FRET and PICT, and reveal the advantages of FRET enhanced PICT. The driving force for PICT in the FRET system equals the reorganization energy, which gives barrier-less charge transfer according to Marcus theory. The rates of PICT in the FRET system can be estimated with our simplified Marcus equation. Our results can promote the deeper understanding of the nature of FRET enhanced PICT, and benefit rational design for the use of the FRET system in organic solar cells.
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