Development of functionalized sensitizing dyes based on a 7-membered ring structure towards improvement of efficiency in dye-sensitized solar cells

染料敏化太阳能电池（DSSC）被认为是新一代太阳能电池。为了提高DSSC的能量转换效率，我选择了一个7元环结构引入到新的敏化染料中，因为它有望增强从受激敏化染料到TiO2层的电子注入。将具有七元环结构的tropolone敏化染料与具有六元环结构的苯甲酸衍生物进行了比较，苯甲酸衍生物是其结构异构体。

Dye-sensitized solar cells (DSSC) have been regarded as next generation solar cells. In order to increase energy conversion efficiency of DSSC, I chose a 7-membered ring structure to introduce into the new sensitizing dyes, because it is expected to enhance electron injection from excited sensitizing dye to TiO2 layer. The tropolone sensitizing dye having a 7-membered ring structure was compared to benzoic acid derivative having a six-membered ring structure that is its structural isomer.