Vlachopoulos Nick, Hagfeldt Anders
Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, School of Basic Sciences, École Polytechnique Fédérale de Lausanne, CH-1015 Lausanne.
Chimia (Aarau). 2019 Nov 1;73(11):894-905. doi: 10.2533/chimia.2019.894.
Dye-sensitized semiconductor oxide photoelectrodes in which light is absorbed by a monomolecular layer of dye chemisorbed on a porous oxide substrate have attracted considerable interest in the last 35 years, mainly for the conversion of sunlight to electricity, in dye-sensitized solar cells (DSSCs) with maximal efficiencies in the range 10-15%, and, most recently, as dye-sensitized photoelectrochemical cells (DSPECs) for the generation of solar fuels. In the latter direction, considerable progress has been achieved but the efficiency is notably lower than for electricity generation. In the present review, the basic physicochemical principles of the DSSC and DSPEC operation are described, several keynote results reported, and the factors limiting the performance and necessitating further research highlighted.
在过去35年中,染料敏化半导体氧化物光电极引起了人们的广泛关注,其中光被化学吸附在多孔氧化物基底上的单分子层染料吸收,主要用于将太阳光转化为电能,应用于染料敏化太阳能电池(DSSC),其最大效率在10%-15%范围内,最近还用于作为染料敏化光电化学电池(DSPEC)来生成太阳能燃料。在后一个方向上已经取得了相当大的进展,但效率明显低于发电效率。在本综述中,描述了DSSC和DSPEC运行的基本物理化学原理,报告了几个关键结果,并强调了限制性能和需要进一步研究的因素。