Near-infrared absorbing isoindigo sensitizers: Synthesis and performance for dye-sensitized solar cells
Near-infrared absorbing isoindigo sensitizers: Synthesis and performance for dye-sensitized solar cells
复制标题
DOI：
10.1016/j.dyepig.2014.07.017
复制
发表时间：
2015
影响因子：
4.5
通讯作者：
Dan Wang;Weijiang Ying;Xiaoyu Zhang;Yue Hu;Wenjun Wu;Jianli Hua
中科院分区：
文献类型：
--
作者：
Dan Wang;Weijiang Ying;Xiaoyu Zhang;Yue Hu;Wenjun Wu;Jianli Hua
合成了一系列基于异靛蓝的无金属有机敏化剂，并将其应用于染料敏化太阳能电池（DSSC）。测量数据表明，供体或连接基团的微调可以方便地调节最高占据分子轨道（HOMO）和最低未占据分子轨道（LUMO）能级。三种新染料敏化的DSSC均表现出高效的全色光谱响应，并在近红外区具有更好的捕光能力，其中苯桥异靛蓝敏化的DSSC的光电转换效率最高，为5.56%，短路光电流密度（Jsc）为13.16 mA/cm 2，开路光电压（Voc）为582 mV，以及填充因子（FF）为0.73。
A series of isoindigo-based metal-free organic sensitizers have been synthesized and used in dye-sensitized solar cells (DSSCs). Measurement data indicated that the fine-tuning of the donor or linker moiety could conveniently adjust the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels. All DSSCs sensitized by three new dyes displayed an efficient panchromatic spectra response with the improved light-harvesting capability in near-infrared region, in which a highest photovoltaic conversion efficiency of 5.56% was obtained by the DSSCs of benzene-bridge isoindigo-based sensitizer, with a short-circuit photocurrent density (Jsc) of 13.16 mA/cm2, an open-circuit photovoltage (Voc) of 582 mV, and a fill factor (ff) of 0.73.