PEDOT基对电极染料敏化太阳能电池研究进展

Progress in PEDOT-based Conduct Electrode for Dye-sensitized Solar Cells

染料敏化太阳能电池(DSSC)是新型太阳能电池的研究热点之一,其优异的弱光发电性能被不断探索,同时透明及柔性DSSC在可穿戴设备上的应用也与日俱增。DSSC的循环依靠对电极的作用才能及时高效地完成,因此对电极材料的选择尤为关键。近几年研究者们对对电极材料的研究不断深入,其中可作为DSSC对电极材料使用的高分子导电聚合物聚3,4-乙撑二氧噻吩(PEDOT)因其高导电性、对电解质的催化能力、透明性和柔性等特点受到广泛关注。以含PEDOT或掺杂PEDOT对电极的DSSC为对象,阐述了PEDOT对电极的制备方法,并总结了近几年PEDOT作为DSSC对电极的研究进展。在此基础上,提出未来在电池效率突破研究中应以原位聚合法制备PEDOT对电极为主,以及在大规模工业化生产中应以物理涂覆法为主的观点,为PEDOT对电极DSSC的研究提供依据。

Dye-sensitized solar cells（DSSC）is an attracting issue of the new solar cell field.Its low-light electricity generating capacity has been further explored and developed.The application of transparent and flexible DSSC on wearable devices has also attracted more and more attention.The performance of the DSSC highly depends on the conduct electrode（CE）,therefore the selection of the material for CE arises as a key issue.Poly（3,4-ethylenedioxythiophene）（PEDOT）,a high molecular conductive polymer,has shown its potential as CE material in recent years because of its high conductivity,catalytic ability of the electrolyte,transparency and flexibility.In this paper,we focus on PEDOT and doped PEDOT using for CEs of the DSSCs.The preparation methods of PEDOT and doped PEDOT have been discussed and the progresses of the researches on the application of these materials as CEs of DSSCs have been reviewed.We propose that in situ polymerization is the promising method for preparing PEDOT film CE,whereas physical coating is the potential route for large-scale fabrication.This review provides references for the development of the CEs of DSSCs.