Effect of the interface morphology on the fill factor of plastic solar cells

被引：25
作者：
Djara, V [1 ]
Bernède, JC [1 ]
机构：
[1] Univ Nantes, FSTN, LPSE, F-44322 Nantes, France
来源：
THIN SOLID FILMS | 2005年 / 493卷 / 1-2期
关键词：
organic solar cells; thin films; phthalocyanine; diaminoanthraquinone; interface;
D O I：
10.1016/j.tsf.2005.06.098
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Organic bilayer solar cells based on a donor/acceptor junction of zinc-phthalocyanine/1,4-diaminoanthraquinone (ZnPc/1,4-DAAQ) were studied. The transparent conductive oxide (TCO) electrode used was either the indium tin oxide (ITO) or the zinc oxide (ZnO), also the (poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid (PEDOT:PSS) was used as conductive polymer. Two different configurations were prepared: glass/ITO (or ZnO)/ZnPc/1,4-DAAQ/Al configuration and glass/Al/1,4-DAAQ/ZnPc/PEDOT:PSS/ ITO (or ZnO)/glass configuration. From the analysis of the current-voltage characteristics, the former presented a fill factor of 0.2, whereas the latter showed a fill factor of 0.5. Scanning electron microscopy images of the surface of the 1,4-DAAQ layer and the cross section of the overall structure were obtained. 1,4-DAAQ films revealed a highly fibrillar morphology. This special morphology is thought to have a preponderant effect on the fill factor, depending on the cell configuration. (c) 2005 Published by Elsevier B.V.
引用
收藏
页码：273 / 277
页数：5
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