文献类型：期刊文献

英文题名：D-A-π-A featured sensitizers containing an auxiliary acceptor of benzoxadiazole: molecular engineering and co-sensitization

作者：Zhu, Haibo;Wu, Yongzhen;Liu, Jingchuan;Zhang, Weiwei;Wu, Wenjun;Zhu, Wei-Hong[1]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Funct Mat Chem, Key Lab Adv Mat, Shanghai 200237, Peoples R China; E China Univ Sci & Technol, Inst Fine Chem, Collaborat Innovat Ctr Coal Based Energy I CCE, Shanghai 200237, Peoples R China

年份：2015

卷号：3

期号：19

起止页码：10603

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20151900834423);WOS:【SCI-EXPANDED(收录号:WOS:000354204500060)】；

基金：This work was supported by NSFC for Creative Research Groups (21421004) and Distinguished Young Scholars (21325625), NSFC/China, and the Oriental Scholarship.

语种：英文

摘要：Two novel D-A-pi-A organic sensitizers (WS-24 and WS-26) incorporating a benzoxadiazole (BOD) unit are synthesized for dye sensitized solar cells. An additional n-hexylthiophene unit is incorporated into WS-26 to decrease unfavourable dye aggregation, thus suppressing charge recombination and increasing the solubility. Incorporating an auxiliary acceptor of benzoxadiazole (BOD) into the pi-bridge can red shift absorption bands, and sharply decrease the LUMO level. In virtue of co-sensitization, the WS-26 based DSSC device can achieve photovoltaic efficiency as high as 9.72%.