Facile Synthesis of Nanoporous NiS Film with Inverse Opal Structure as Efficient Counter Electrode for DSSCs

Materials

Qiwei Jiang¹  Yang Zhang¹  Yashuai Pang¹  Xu Chen¹ 

[1] Department of Physics, School of Physics and Electronic, Henan University, Kaifeng 475004, China;

关键词: electrocatalytic activity;    nanoporous NiS film;    template method;    dye-sensitized solar cells;    counter electrode;   

DOI  :  10.3390/ma13204647

来源: DOAJ

【 摘 要 】

To satisfy the high requirement of catalytic activity for efficient dye-sensitized solar cells (DSSCs), a novel nanoporous NiS film with inverse opal structure and outstanding electrocatalytic properties was prepared by a facile template-assisted electrodeposition method. The inverse opal structure makes the film have a larger specific surface area and more catalytic sites, thereby result to a higher electrocatalytic activity. Compared with the flat NiS/FTO electrode, this kind of nanoporous NiS film with inverse opal structure has higher catalytic activity and can be used as a cheap and efficient Pt-free electrode to replace the traditional Pt/FTO electrode. It is of great significance to reduce the cost and promote the wide application of DSSCs. This study opens up a new experimental exploration for further improving the catalytic activity of NiS electrode and the according photovoltaic efficiency of DSSCs. The template-assisted electrodeposition method proposed in this work provides a facile method for morphology control and an easy to be realized way to optimize the catalytic performance of the metal sulfides counter electrode.

【 授权许可】

Unknown