Thick C60:ZnPc bulk heterojunction solar cells with improved performance by film deposition on heated substrates

被引：88

作者：

Pfuetzner, Steffen ^{[1
]}

Meiss, Jan ^{[1
]}

Petrich, Annette ^{[1
]}

Riede, Moritz ^{[1
]}

Leo, Karl ^{[1
]}

机构：

[1] Tech Univ Dresden, Inst Angew Photophys, D-01062 Dresden, Germany

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 25期

关键词：

electron-hole recombination; fullerene devices; fullerenes; organic compounds; photoconductivity; solar cells; thin films; vacuum deposition; PHTHALOCYANINE; NETWORKS;

D O I：

10.1063/1.3154554

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We study the influence of different substrate temperatures during the deposition of the ZnPc:C-60 blend layer in bulk heterojunction organic solar cells. It is shown that substrate heating during evaporation leads to a significant improvement in the solar cell performance mainly due to an increase in photocurrent and fill factor (FF). This is attributed to improved morphology resulting in better charge carrier percolation pathways within the ZnPc:C-60 blend, leading to reduced transport losses. Using this method, blend layer thicknesses of 150 nm are possible without loss in FF, which requires a three-dimensional interpenetrating network without isolated clusters. When heating the substrate up to 110 degrees C, an efficiency of 2.56% is achieved compared to 1.59% for an identical device prepared at room temperature.

引用

页数：3