Enhanced photocurrent and open-circuit voltage in a 3-layer cascade organic solar cell

被引：60

作者：

Cnops, Kjell ^{[1
,2
]}

Rand, Barry P. ^{[1
]}

Cheyns, David ^{[1
]}

Heremans, Paul ^{[1
,2
]}

机构：

[1] IMEC, B-3001 Heverlee, Belgium

[2] Katholieke Univ Leuven, ESAT, B-3001 Louvain, Belgium

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 14期

关键词：

ELECTRON-ACCEPTOR; SUBPHTHALOCYANINE; POLYMER; PHOTOVOLTAICS;

D O I：

10.1063/1.4757575

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We demonstrate a cascade architecture for organic solar cells with two planar donor/acceptor (DA) heterojunctions operating in series. In a 3-layered structure, subphthalocyanine (SubPc) acts as an ambipolar interlayer between a tetracene (Tc) donor and a C-60 acceptor. The Tc/SubPc and SubPc/C-60 interfaces are both able to contribute to the photocurrent, which results in a short-circuit current in the 3-layer cascade cell larger than in any of the constituent bi-layer DA combinations. Furthermore, the open-circuit voltage is increased due to reduced recombination losses at the DA interface. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757575]

引用

页数：4

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