Pyrrolo[3,2,1-kl]phenothiazine-based D- π -A type organic dyes for efficient dye-sensitized solar cells
作者:Feng Li、Yi-Zhou Zhu、Shao-Chun Zhang、Huan-Huan Gao、Bin Pan、Jian-Yu Zheng
DOI:10.1016/j.dyepig.2016.12.025
日期:2017.4
Novel metal-free organic dyes based on polycyclic aromatic donor, pyrrolo[3,2,1-kl]phenothiazine, have been synthesized and applied in dye-sensitized solar cells. Combined with cyanoacrylic acid as the acceptor/anchoring group and simple π-spacers such as thiophene (JY40), furan (JY41), and terthiophene (JY42) as the conjugated linker, these dyes show good power conversion efficiency (PCE). The photophysical
合成了基于多环芳族供体的新型无金属有机染料吡咯并[3,2,1-kl]吩噻嗪,并将其应用于染料敏化太阳能电池。用氰基丙烯酸作为受主/锚定基团和简单π间隔物,例如噻吩(合成JY40),呋喃(JY41),和三噻吩(JY42)作为共轭连接基团,这些染料显示出良好的功率转换效率(PCE)。对这些染料的光物理,电化学和光伏性质以及理论计算进行了全面研究。有吸引力的PCE高达7.54%,短路光电流密度(J sc)为17.76 mA cm -2,开路光电压(V oc))达到726 mV),并且基于JY42的电池在标准AM 1.5 G辐射下结合碘电解质已达到0.58的填充因子(FF)。