准固态染料敏化太阳能电池中电解质体系的研究进展

Research Progress of Electrolyte in Quasi-solid-state Dye Sensitized Solar Cells

染料敏化太阳能电池(Dye Sensitized Solar Cells)是新一代将光能转化为电能的重要能源转换装置。它具有低廉的材料和器件制作成本、较高的光电转换效率以及电池制作过程简单等诸多优点,拥有广阔的应用空间和巨大的潜在商业价值,因而吸引了广泛的研究关注。染料敏化太阳能电池主要由染料敏化的光阳极、电解质和对电极三个部分组成。其中,电解质作为染料敏化太阳能电池的重要组成部分,其对离子的传导和扩散,以及促进染料再生的能力极大地影响着染料敏化太阳能电池的电荷传输和光电性能。本文聚焦于染料敏化太阳能电池准固态电解质体系,主要从聚合物凝胶电解质、有机小分子凝胶电解质和无机纳米粒子凝胶电解质三大方面综述讨论了该研究领域当前最新研究进展,并对其未来研究趋势进行了展望。

Dye-sensitized solar ceils （DSSCs） are attractive candidates for the next generation of solar energy conversion. Owing to their low-cost materials, simple fabrication process and high energy conversion efficiencies and so on, dye-sensitized solar cells possess broad research interests and great potentially commercial applications. A DSSC typically consists of a dye-adsorbed photoelectrode layer, a counter electrode, and electrolyte. The electrolyte, as one of the key component in DSSCs, would have a significant influence on ions diffusion, charge transport and dye regeneration, thus affecting photovoltaic performance of DSSCs. In this review, we mainly focus on recent research developments of quasi- solid-state dye sensitized solar cells. Three aspects including polymer gel electrolytes, low molecular mass organic gelator and inorganic nano-particle gel electrolytes are highlighted. Finally, the future research trend of quasi-solid-state electrolyte for enhanced DSSCs is also prospected.