敏化介质对TiO_2纳米晶太阳能电池的影响

Effect of Sensitization Medium on Dye - Sensitized TiO_2 Nanocrystalline Solar Cells

染料敏化太阳能电池的光电转换效率很低,主要原因是染料敏化剂的吸收光谱分布与太阳光谱不相匹配。从其结构及原理出发,对敏化剂吸附基质、敏化剂结构、敏化剂吸附层数等方面逐一进行了论述,探讨了这些方面在结合过程中出现的问题,找出了染料敏化过程中的影响因素,同时,对近几年来研究得很活跃的新型钌系列有机敏化材料进行了归纳总结,分析其与二氧化钛的结合过程,提出了二者有效结合及提高其光吸收范围的途径,指出了未来敏化染料的发展方向。

Currently the incident photon-to- current efficiency (IPCE) of dye- sensitized solar cells is low, which is because of unmatch of the absorption spectrum distribution of dye - sensitized and solar spectrum. Based on the solar cells structure and mechanism, the effect factors of IPCE were found out that they involved substrate, the structure of dye - sensitizer and the number of absorption layers. New - style Ru - series organic sensitization materials and its absorption process on TiO2 were analyzed. The problem and the solution about dye - sensitization were also discussed and the prospect of dye - sensitizer was predicted.