Contrasting photodynamics between C60-dithiapyrene and C60-pyrene dyads

被引：24

作者：

Guldi, Dirk M. ^{[1
]}

Spaenig, Fabian ^{[1
]}

Kreher, David ^{[2
,3
]}

Perepichka, Igor F. ^{[2
,3
]}

van der Pol, Cornelia ^{[2
,3
]}

Bryce, Martin R. ^{[2
,3
]}

Ohkubo, Kei ^{[4
]}

Fukuzumi, Shunichi ^{[4
]}

机构：

[1] Univ Erlangen Nurnberg, Inst Phys Chem, D-91058 Erlangen, Germany

[2] Univ Durham, Dept Chem, Durham DH1 3LE, England

[3] Univ Erlangen Nurnberg, Ctr Mol & Nanoscale Elect, D-91058 Erlangen, Germany

[4] Osaka Univ, SORST, Japan Sci & Technol Agcy, Grad Sch Engn,Dept Mat & Life Sci, Osaka 5650871, Japan

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2008年 / 14卷 / 01期

关键词：

dyads; electron transfer; fullerenes; photodynamics; pyrenes;

D O I：

10.1002/chem.200700837

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The photodynamics of a C-60- dithiapyrene donor-acceptor conjugate were compared with the corresponding C-60-pyrene conjugate. The photoinduced charge separation and subsequent charge recombination processes were examined by time-resolved fluorescence measurements on the picosecond timescale and transient absorption measurements on the picosecond adn microsecond timescales with detection in the visible and near-infrared regions. We have observed quite long lifetimes (i.e., up to 1.01 ns) for the photogenerated charge-separated state in a C-60-dithiapyrene dyad without the need for i) a long spacer between the two moieties, or ii) a gain in aromaticity in the radical ion pair.

引用

页码：250 / 258

页数：9

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