Highly Conductive PEDOT:PSS Electrode with Optimized Solvent and Thermal Post-Treatment for ITO-Free Organic Solar Cells

被引：1268

作者：

Kim, Yong Hyun ^{[1
]}

Sachse, Christoph ^{[1
]}

Machala, Michael L. ^{[1
]}

May, Christian ^{[2
]}

Mueller-Meskamp, Lars ^{[1
]}

Leo, Karl ^{[1
,2
]}

机构：

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

[2] Fraunhofer Inst Photon Mikrosyst, D-01109 Dresden, Germany

来源：

ADVANCED FUNCTIONAL MATERIALS | 2011年 / 21卷 / 06期

关键词：

SULFONATE) FILM; WORK FUNCTION; TRANSPARENT; STABILITY; EFFICIENT;

D O I：

10.1002/adfm.201002290

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) films as stand-alone electrodes for organic solar cells have been optimized using a solvent post-treatment method. The treated PEDOT: PSS films show enhanced conductivities up to 1418 S cm(-1), accompanied by structural and chemical changes. The effect of the solvent treatment on PEDOT: PSS has been investigated in detail and is shown to cause a reduction of insulating PSS in the conductive polymer layer. Using these optimized electrodes, ITO-free, small molecule organic solar cells with a zinc phthalocyanine (ZnPc): fullerene C-60 bulk heterojunction have been produced on glass and PET substrates. The system was further improved by pre-heating the PEDOT: PSS electrodes, which enhanced the power conversion efficiency to the values obtained for solar cells on ITO electrodes. The results show that optimized PEDOT: PSS with solvent and thermal post-treatment can be a very promising electrode material for highly efficient flexible ITO-free organic solar cells.

引用

页码：1076 / 1081

页数：6

共 33 条

[1] Highly efficient organic solar cells with printable low-cost transparent contacts [J].