Abstract
The unprecedented dependence of final charge separation efficiency as a function of donor-acceptor interaction in covalently-linked molecules with a rectilinear rigid oligo-p-xylene bridge has been observed. Optimization of the donor-acceptor electronic coupling remarkably inhibits the undesirable rapid decay of the singlet charge-separated state to the ground state, yielding the final long-lived, triplet charge-separated state with circa 100 % efficiency. This finding is extremely useful for the rational design of artificial photosynthesis and organic photovoltaic cells toward efficient solar energy conversion. Optimization of donor-acceptor electronic coupling remarkably inhibits the undesirable rapid decay of the singlet charge-separated state to the ground state, yielding the final long-lived, triplet charge-separated state with circa 100 % efficiency. This finding is relevant to the rational design of artificial photosynthesis and organic photovoltaic cells.
Original language | English |
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Pages (from-to) | 629-633 |
Number of pages | 5 |
Journal | Angewandte Chemie - International Edition |
Volume | 55 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2016 Jan 11 |
Externally published | Yes |
Keywords
- Marcus theory
- charge separation
- electron transfer
- electronic coupling
- exciplexes
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)