Room Temperature Solid-State Synthesis of a Conductive Polymer for Applications in Stable I<sub>2</sub>-Free Dye-Sensitized Solar Cells
作者:Byeonggwan Kim、Jong Kwan Koh、Jeonghun Kim、Won Seok Chi、Jong Hak Kim、Eunkyoung Kim
DOI:10.1002/cssc.201200349
日期:2012.11
solid‐state dye‐sensitized solar cells (ssDSSCs). With the introduction of an organized mesoporous TiO2 (OM‐TiO2) layer, the energy conversion efficiency reached 3.5 % at 100 mW cm−2, which was quite stable up to at least 1500 h. The cell performance and stability was attributed to the high stability of PProDOT, with the high conductivity and improved interfacial contact of the electrode/HTM resulting in reduced
在25°C下合成了一种固态可聚合单体2,5-二溴-3,4-丙烯二氧噻吩(DBProDOT)以生产导电聚合物聚(3,4-丙烯二氧噻吩)(PProDOT)。晶体学研究表明,DBProDOT分子之间的晶面间距很短,这与2,5-二溴-3,4-亚乙基二氧噻吩(DBEDOT)或其衍生物相比,在低温下具有较低的活化能和较高的放热反应。在25°C下DBProDOT固态聚合(SSP)时,以三溴离子自掺杂状态获得PProDOT,电导率为0.05 S cm -1,远高于化学聚合的PProDOT( 2×10 -6 S cm -1)。固态1313 C NMR光谱和DFT计算显示PProDOT中的极化子和顺磁性展宽导致噻吩中碳核的强烈扰动。DBProDOT分子深深渗透并聚合,用PProDOT填充纳米TiO 2孔,PProDOT用作无I 2固态染料敏化太阳能电池(ssDSSCs)的空穴传输材料(HTM )。通过引入有组织的介孔TiO