Singlet Exciton Fission in Polycrystalline Thin Films of a Slip-Stacked Perylenediimide

被引：316

作者：

Eaton, Samuel W. ^{[1
,2
]}

Shoer, Leah E. ^{[1
,2
]}

Karlen, Steven D. ^{[1
,2
]}

Dyar, Scott M. ^{[1
,2
]}

Margulies, Eric A. ^{[1
,2
]}

Veldkamp, Brad S. ^{[1
,2
]}

Ramanan, Charusheela ^{[1
,2
]}

Hartzler, Daniel A. ^{[3
]}

Savikhin, Sergei ^{[3
]}

Marks, Tobin J. ^{[1
,2
]}

Wasielewski, Michael R. ^{[1
,2
]}

机构：

[1] Northwestern Univ, Dept Chem, Evanston, IL 60208 USA

[2] Northwestern Univ, Argonne Northwestern Solar Energy Res ANSER Ctr, Evanston, IL 60208 USA

[3] Purdue Univ, Dept Phys, W Lafayette, IN 47907 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 39期

基金：

美国国家科学基金会;

关键词：

PHOTOINDUCED ELECTRON-TRANSFER; EXCIMER-FORMING CRYSTAL; TRIPLET EXCITONS; CHARGE SEPARATION; ENERGY-TRANSFER; MAGNETIC-FIELD; RHODOSPIRILLUM-RUBRUM; PHOTOSYNTHETIC SYSTEM; TETRACENE CRYSTALS; SPIN-RESONANCE;

D O I：

10.1021/ja4053174

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The crystal structure of N,N-bis(n-octyl)-2,5,8,11-tetraphenylperylene-3,4:9,10-bis(dicarboximide), 1, obtained by X-ray diffraction reveals that 1 has a nearly planar perylene core and pi-pi stacks at a 3.5 angstrom interplanar distance in well-separated slip-stacked columns. Theory predicts that slip-stacked, pi-pi-stacked structures should enhance interchromophore electronic coupling and thus favor singlet exciton fission. Photoexcitation of vapor-deposited polycrystalline 188 nm thick films of 1 results in a 140 +/- 20% yield of triplet excitons ((3)*1) in tau(SF) = 180 +/- 10 ps. These results illustrate a design strategy for producing perylenediimide and related rylene derivatives that have the optimized interchromophore electronic interactions which promote high-yield singlet exciton fission for potentially enhancing organic solar cell performance and charge separation in systems for artificial photosynthesis.

引用

页码：14701 / 14712

页数：12

共 167 条

[61] Diradical Character Based Design for Singlet Fission of Condensed-Ring Systems with 4nπ Electrons [J].