Influence of cathode in organic solar cells performance

被引：0

作者：

del Pozo, G. ^{[1
]}

Romero, B. ^{[1
]}

Arredondo, B. ^{[1
]}

机构：

[1] Univ Rey Juan Carlos, Dept Elect Technol, Mostoles, Spain

来源：

PROCEEDINGS OF THE 2013 SPANISH CONFERENCE ON ELECTRON DEVICES (CDE 2013) | 2013年

关键词：

organic solar cells; metal electrode; Lambert W-function; equivalent electric circuit;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work we have fabricated and characterized organic solar cells (OSC) based on blends of polyhexylthiophene (P3HT) and [6,6]-phenil-C61-butyric acid methyl ester (PCBM) with two different cathodes: Al and LiF/Al. Current-Voltage (I-V) curves under illumination have been measured and fitted with the standard equivalent circuit in order to extract circuital parameters, such as series and parallel resistances (R-S and R-P), ideality factor (n) and inverse saturation current (I-0). The introduction of a thin layer (0.5 nm) of LiF between active layer and Al, increases the open circuit voltage (V-OC) but slightly reduces short current (I-SC) and fill factor (FF). The overall result is a slight increase of the efficiency, from 2.53 % to 2.57 %. Circuital parameters have been extracted with two methods (approximated an exact), and results show that structures with LiF layer have lower parasitic effects (lower R-S and higher R-P).

引用

页码：321 / 324

页数：4

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