Photovoltaic properties and exciplex emission of polyphenylenevinylene-based blend solar cells

被引：71

作者：

Yin, Chunhong

Kietzke, Thomas

Neher, Dieter

Hoerhold, Hans-Heinrich

机构：

[1] Univ Potsdam, Inst Phys, D-14469 Potsdam, Germany

[2] Univ Jena, Inst Organ Chem & Makromol Chem, D-07743 Jena, Germany

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 09期

关键词：

D O I：

10.1063/1.2710474

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

By studying the photoluminescence emission and photovoltaic properties of blends of polyphenylenevinylene (PPV)-based electron donating and accepting polymers, the authors observed a strict anticorrelation between relative exciplex emission in the solid state and photovoltaic efficiency of corresponding blend devices. Comparative studies on defined bilayer geometries showed that the overall shape of the current-voltage characteristics under illumination is independent of device geometry and layer thickness. Consequently, they conclude that the photocurrent in PPV-based blends is mainly determined by the efficiency to form free carriers rather than by free carrier recombination. (c) 2007 American Institute of Physics.

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页数：3

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