Bulk heterojunction organic photovoltaic devices based on phenyl-cored thiophene dendrimers

被引：119

作者：

Kopidakis, Nikos

Mitchell, William J.

van de Lagemaat, Jao

Ginley, David S.

Rumbles, Garry

Shaheen, Sean E.

Rance, William L.

机构：

[1] Natl Renewable Energy Lab, Golden, CO 80401 USA

[2] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 10期

关键词：

D O I：

10.1063/1.2337859

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Bulk heterojunction organic photovoltaic devices have been fabricated by blending phenyl-cored thiophene dendrimers with a fullerene derivative. A power conversion efficiency of 1.3% under simulated AM1.5 illumination is obtained for a four-arm dendrimer, despite its large optical band gap of 2.1 eV. The devices exhibit an increase in short-circuit current and power conversion efficiency as the length of the arm is increased. The fill factors of the devices studied are characteristically low, which is attributed to overly uniform mixing of the blend. (c) 2006 American Institute of Physics.

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页数：3

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