Efficiency enhancements in solid-state hybrid solar cells via reduced charge recombination and increased light capture

被引：322

作者：

Snaith, Henry J. ^{[1
]}

Moule, Adam J.

Klein, Cedric

Meerholz, Klaus

Friend, Richard H.

Gratzel, Michael

机构：

[1] Ecole Polytech Fed Lausanne, Inst Chim Phys, CH-1015 Lausanne, Switzerland

[2] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

[3] Inst Chem Phys, D-50939 Cologne, Germany

来源：

NANO LETTERS | 2007年 / 7卷 / 11期

关键词：

D O I：

10.1021/nl071656u

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We compare a series of molecular sensitizers in dye-sensitized solar cells containing the organic hole transporter 2,2',7,7'-tetrakis(NN-di-p-methoxypheny-amine)-9,9'-spirobifluorene (spiro-MeOTAD). Charge recombination is reduced by the presence of "ion-coordinating" moieties on the dye, with the longest electron lifetime and highest solar cell efficiency achieved using a novel sensitizer with diblock alkoxy-alkane pendent groups. By further increasing the optical path length in the active layer, we achieve a power conversion efficiency of over 5% under OF simulated sun light.

引用

页码：3372 / 3376

页数：5

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