Efficiency improvement of dye-sensitized solar cells by in situ fluorescence resonance energy transfer
作者:Yu-Jie Lin、Jyun-Wei Chen、Po-Tsung Hsiao、Yung-Liang Tung、Cheng-Chung Chang、Chih-Ming Chen
DOI:10.1039/c7ta00638a
日期:——
8-naphthalimide derivative (H-NIM) containing an alkyl carboxylic chain has been rationally designed and synthesized for efficient utilization of fluorescence resonance energy transfer (FRET) in dye-sensitized solar cells (DSSCs). The H-NIM fluorophore, which can absorb ultraviolet light and emit green light under illumination, is doped into a TiO2 mesoporous film with N719 molecules by a co-adsorption method. The
为了有效利用染料敏化太阳能电池(DSSC)中的荧光共振能量转移(FRET),已经合理地设计和合成了含有烷基羧基链的1,8-萘二甲酰亚胺衍生物(H-NIM)。通过共吸附法将能够吸收紫外线并在照射下发出绿光的H-NIM荧光团掺杂到具有N719分子的TiO 2介孔膜中。H-NIM荧光团通过与N719相同的方法通过其羧基吸附在TiO 2上,从而确保了从H-NIM(FRET供体)到N719(FRET受体)的原位更有效的能量转移FRET,从而促进N719分子在紫外线光谱范围内的光收集。H-NIM和N719的共吸附还通过屏蔽TiO 2和电解质之间的接触面积来减少电荷复合。我们的结果表明,H-NIM荧光团的最佳掺杂率为17%,在1种阳光(AM1.5G)和600 lux光照下,DSSC的功率转换效率(PCE)分别提高了10.8%和21%。分别用T5荧光灯和仅吸附了N719分子的DSSC进行比较。