天然染料在染料敏化太阳能电池中的研究进展

染料敏化太阳能电池(DSSCs)为无机固态光伏电池提供了可靠的可代替概念。染料敏化太阳能电池的光电转换效率主要依赖于纳米晶多孔半导体TiO2薄膜电极的染料。由于天然染料的低成本和工艺制备简单的优点,天然染料作为敏化剂已成为DSSC研究热点。作为DSSC的敏化剂的天然染料,如花青素类、胡萝卜素类、叶绿素类、类黄酮,可从不同植物不同部分提取出。主要介绍和讨论天然敏化剂的发展和实用化必须解决的关键问题。

Research development on natural dye of dye-sensitized solar cells

Dye-sensitized solar cell（ DSSC） provides credible alternative concept for inorganic solid-state photovoltaic devices. The conversion efficiency of DSSC is mainly based on the dye coated on the porous semiconductor TiO2film. The use of natural dyes in DSSC is promising development because of the scarce availability of the noble metals and simple chemical synthesis. Natural pigments,such as anthocyanin,carotenoid,chlorophyll,and flavonoid can be extracted from leaves,flowers and fruits of various kinds of plants. The development of using natural dyes as sensitizers in dye-sensitized solar cells was detailedly reviewed and discussed. Furthermore,the development trend of the devices with the discussion of key problems for commercialization was predicted.