School of Chemistry, Bio21 Institute, University of Melbourne , Parkville, Vic 3010, Australia.
J Org Chem. 2011 May 20;76(10):4088-93. doi: 10.1021/jo2001484. Epub 2011 Apr 26.
A one-pot synthesis of 2,6-dibromodithieno[3,2-b;2',3'-d]thiophene (dibromo-DTT, 4) was developed. A key step was bromodecarboxylation of DTT-2,6-dicarboxylic acid, obtained by saponification of the diester 1. The donor-acceptor dye DAHTDTT (13), based on a central 2,6-bis[2'-(3'-hexylthienyl)]dithieno[3,2-b;2',3'-d]thiophene core (9), was prepared and incorporated in a dye-sensitized solar cell (DSC), which exhibited an energy conversion efficiency of 7.3% with V(oc) of 697 mV, J(sc) of 14.4 mA/cm(2), and ff of 0.73 at 1 sun.
开发了一种一锅法合成 2,6-二溴二噻吩并[3,2-b;2',3'-d]噻吩（二溴-DTT，4）的方法。关键步骤是 DTT-2,6-二羧酸的溴代脱羧，该羧酸由 1 的酯水解得到。基于中心 2,6-双[2'-(3'-己基噻吩基)]二噻吩并[3,2-b;2',3'-d]噻吩（9）的给体-受体染料 DAHTDTT（13）被制备并掺入染料敏化太阳能电池（DSC）中，该电池在 1 个太阳下表现出 7.3%的能量转换效率，开路电压为 697 mV，短路电流为 14.4 mA/cm(2)，填充因子为 0.73。
