Remarkable Dependence of the Final Charge Separation Efficiency on the Donor-Acceptor Interaction in Photoinduced Electron Transfer

Tomohiro Higashino; Tomoki Yamada; Masanori Yamamoto; Akihiro Furube; Nikolai V. Tkachenko; Taku Miura; Yasuhiro Kobori; Ryota Jono; Koichi Yamashita; Hiroshi Imahori

doi:10.1002/anie.201509067

Remarkable Dependence of the Final Charge Separation Efficiency on the Donor-Acceptor Interaction in Photoinduced Electron Transfer

Tomohiro Higashino, Tomoki Yamada, Masanori Yamamoto, Akihiro Furube, Nikolai V. Tkachenko, Taku Miura, Yasuhiro Kobori, Ryota Jono, Koichi Yamashita, Hiroshi Imahori

Research output: Contribution to journal › Article › peer-review

72 Citations (Scopus)

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
Pages (from-to)	629-633
Number of pages	5
Journal	Angewandte Chemie - International Edition
Volume	55
Issue number	2
DOIs	https://doi.org/10.1002/anie.201509067
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)

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1002/anie.201509067

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Higashino, T., Yamada, T., Yamamoto, M., Furube, A., Tkachenko, N. V., Miura, T., Kobori, Y., Jono, R., Yamashita, K., & Imahori, H. (2016). Remarkable Dependence of the Final Charge Separation Efficiency on the Donor-Acceptor Interaction in Photoinduced Electron Transfer. Angewandte Chemie - International Edition, 55(2), 629-633. https://doi.org/10.1002/anie.201509067

Higashino, T, Yamada, T, Yamamoto, M, Furube, A, Tkachenko, NV, Miura, T, Kobori, Y, Jono, R, Yamashita, K & Imahori, H 2016, 'Remarkable Dependence of the Final Charge Separation Efficiency on the Donor-Acceptor Interaction in Photoinduced Electron Transfer', Angewandte Chemie - International Edition, vol. 55, no. 2, pp. 629-633. https://doi.org/10.1002/anie.201509067

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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.",

keywords = "Marcus theory, charge separation, electron transfer, electronic coupling, exciplexes",

author = "Tomohiro Higashino and Tomoki Yamada and Masanori Yamamoto and Akihiro Furube and Tkachenko, {Nikolai V.} and Taku Miura and Yasuhiro Kobori and Ryota Jono and Koichi Yamashita and Hiroshi Imahori",

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AU - Imahori, Hiroshi

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PY - 2016/1/11

Y1 - 2016/1/11

N2 - 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.

AB - 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.

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Remarkable Dependence of the Final Charge Separation Efficiency on the Donor-Acceptor Interaction in Photoinduced Electron Transfer

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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