N719与二吡咯亚甲基硼三元组之间的共敏化方法对染料敏化太阳能电池性能的影响。

The effect of co-sensitization methods between N719 and boron dipyrromethene triads on dye-sensitized solar cell performance.

作者信息

Wanwong Sompit, Sangkhun Weradesh, Wootthikanokkhan Jatuphorn

机构信息

Division of Materials Technology, School of Energy, Environment and Materials, King Mongkut's University of Technology Thonburi Bangkok 10140 Thailand

Nanotec-KMUTT Center of Excellence on Hybrid Nanomaterials for Alternative Energy, King Mongkut's University of Technology Thonburi Bangkok 10140 Thailand.

出版信息

RSC Adv. 2018 Mar 2;8(17):9202-9210. doi: 10.1039/c8ra00862k. eCollection 2018 Feb 28.

A boron dipyrromethene (BODIPY) featuring triphenylamine triad, BD, has been synthesized as a co-sensitizer in dye-sensitized solar cells (DSCs). The optical and electrochemical properties of BD have been characterized using UV-vis spectroscopy and cyclic voltammetry. DSCs containing co-sensitizers, N719 and BD, have been prepared in two procedures using co-deposition and stepwise deposition. The influences of the staining processes, co-deposition and stepwise deposition on dye loading, dye dispersion on a TiO photoanode and DSC performance have been investigated using FTIR, SEM-EDS, - test and IPCE measurement, respectively. We found that stepwise co-sensitization provided higher solar cell efficiency, compared to those stained with a co-deposition method. N719/5% BD showed the highest power conversion efficiency of 5.14%. Interestingly, the enhanced device efficiency was 66% higher than that of a device containing the single N719 dye.

一种具有三苯胺三联体的硼二吡咯亚甲基（BODIPY），即BD，已被合成用作染料敏化太阳能电池（DSC）中的共敏化剂。BD的光学和电化学性质已通过紫外可见光谱和循环伏安法进行了表征。含有共敏化剂N719和BD的DSC已通过共沉积和分步沉积两种方法制备。分别使用傅里叶变换红外光谱（FTIR）、扫描电子显微镜-能谱仪（SEM-EDS）、 -测试和入射光子转换效率（IPCE）测量研究了染色过程、共沉积和分步沉积对染料负载量、染料在TiO光阳极上的分散以及DSC性能的影响。我们发现，与采用共沉积方法染色的电池相比，分步共敏化提供了更高的太阳能电池效率。N719/5% BD表现出最高的功率转换效率，为5.14%。有趣的是，增强后的器件效率比含有单一N719染料的器件高66%。