Engineering of highly efficient tetrahydroquinoline sensitizers for dye-sensitized solar cells
作者:Yan Hao、Xichuan Yang、Jiayan Cong、Anders Hagfeldt、Licheng Sun
DOI:10.1016/j.tet.2011.11.004
日期:2012.1
Four novel tetrahydroquinoline dyes by inserting isophorone and/or thiophene moieties as pi bridge between the electron donating unit of substituted tetrahydroquinoline and the electron withdrawing unit of cyano carboxylic acid have been synthesized and successfully applied to dye-sensitized solar cells. Among them, DSCs sensitized by HYTIC, which shows the simplest molecular structure, exhibit improved efficiency of 7.0%. This by now is the highest efficiency for the reported tetrahydroquinoline sensitizers and comparable to the performance of N719-sensitized solar cells under the conditions employed here. (C) 2011 Elsevier Ltd. All rights reserved.