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

被引：91

作者：

Higashino, Tomohiro ^{[1
]}

Yamada, Tomoki ^{[1
]}

Yamamoto, Masanori ^{[1
]}

Furube, Akihiro ^{[2
]}

Tkachenko, Nikolai V. ^{[3
]}

Miura, Taku ^{[4
]}

Kobori, Yasuhiro ^{[4
,5
]}

Jono, Ryota

Yamashita, Koichi

Imahori, Hiroshi ^{[1
]}

机构：

[1] Kyoto Univ, Grad Sch Engn, Dept Mol Engn, Nishikyo Ku, Kyoto 6158510, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058568, Japan

[3] Tampere Univ Technol, Dept Chem & Bioengn, FIN-33101 Tampere, Finland

[4] Kobe Univ, Grad Sch Sci, Dept Chem, Nada Ku, Kobe, Hyogo 6578501, Japan

[5] PRESTO Japan Sci & Technol Agcy, Kawaguchi, Saitama 3320012, Japan

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2016年 / 55卷 / 02期

关键词：

charge separation; electron transfer; electronic coupling; exciplexes; Marcus theory; PORPHYRIN; SPIN; RECOMBINATION; SYSTEMS; ENERGY; DYADS;

D O I：

10.1002/anie.201509067

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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.

引用

页码：629 / 633

页数：5

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