A simple merocyanine tandem solar cell with extraordinarily high open-circuit voltage

被引：15

作者：

Steinmann, V. ^{[1
]}

Kronenberg, N. M. ^{[1
]}

Lenze, M. R. ^{[1
]}

Graf, S. M. ^{[1
]}

Hertel, D. ^{[1
]}

Buerckstuemmer, H. ^{[2
,3
]}

Wuerthner, F. ^{[2
,3
]}

Meerholz, K. ^{[1
]}

机构：

[1] Univ Cologne, Dept Chem, D-50939 Cologne, Germany

[2] Univ Wurzburg, Inst Organ Chem, D-97074 Wurzburg, Germany

[3] Univ Wurzburg, Rontgen Res Ctr Complex Mat Syst, D-97074 Wurzburg, Germany

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 19期

关键词：

PERFORMANCE; EFFICIENCY; DYES;

D O I：

10.1063/1.3657145

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a highly efficient tandem solar cell based on a merocyanine dye, containing two identical subcells connected in series. A recombination layer of Al/MoO(3) was used. Due to a substantial improvement of the fill factor, the overall efficiency of the tandem cell was even higher than that of the single-cell reference with identical active layer thickness. By combining the planar heterojunction and the bulk heterojunction concept, efficiencies up to 4.8% were achieved while maintaining a rather simple, fully vacuum-processed device stack consisting of only four organic layers. The optimized open-circuit voltage was as large as 2.1V. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3657145]

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页数：3

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