Dithienothiophene (DTT)-Based Dyes for Dye-Sensitized Solar Cells: Synthesis of 2,6-Dibromo-DTT
作者:Tae-Hyuk Kwon、Vanessa Armel、Andrew Nattestad、Douglas R. MacFarlane、Udo Bach、Samuel J. Lind、Keith C. Gordon、Weihua Tang、David J. Jones、Andrew B. Holmes
DOI:10.1021/jo2001484
日期:2011.5.20
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)
开发了一锅合成2,6-二溴莫迪诺[3,2 -b ; 2',3' - d ]噻吩(dibromo-DTT,4)。关键步骤是通过皂化二酯1获得的DTT-2,6-二羧酸的溴代羧化。供体-受体染料DAHTDTT(13)的基础上,中央2,6-双[2' - (3'- hexylthienyl)]二噻吩并[3,2 -b ; 2',3' -d ]噻吩核心(9)制备并掺入染料敏化太阳能电池(DSC)中,该染料敏化太阳能电池的能量转换效率为7.3%,V oc为697 mV,J sc为14.4 mA / cm 2,ff 1个太阳时的0.73。