Polypyrrole-coated cotton fabrics prepared by electrochemical polymerization as textile counter electrode for dye-sensitized solar cells
writer：Qi Xu, Meixia Li, Peng Yan, Chengzhuo Wei, Lingling Fang, Wei Wei, Haifeng Bao, Jie Xu*, Weilin Xu**
keywords：Dye-sensitized solar cells, Polypyrrole, Fabric counter electrode, Electrochemical polymerization
source：期刊
specific source：Organic Electronics
Issue time：2015年
Textile-based wearable electronics provides the combined advantages of both electronics and textiles, such as flexibility, stretchability and lightweight. Much effort has been dedicated to achieve flexible photovoltaic power for wearable electronics. Here, we have demonstrated polypyrrole (PPy) coated cotton fabrics as textile counter electrode (CE) in dye-sensitized solar cells (DSSCs). PPy is deposited on the Ni-coated cotton fabrics as catalytic material by electrochemical polymerization of pyrrole. The highly conductive PPy-coated fabric electrode with a surface resistance of 5.0 U sq1 shows reasonable catalytic activity for the reduction of triiodide ion. The DSSC fabricated with the PPy-coated fabric CE exhibits a power conversion efficiency as high as ~3.83% under AM 1.5 illumination.