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JOURNAL OF SYNTHETIC CRYSTALS ›› 2021, Vol. 50 ›› Issue (6): 1062-1069.

• Research Articles • Previous Articles     Next Articles

Preparation of NiCoSe4 Film and Its Application in Dye-Sensitized Solar Cells

GE Xuehao1, WU Jing1, XING Dongliang1, PAN Wenjing1, ZHANG Yulin1,2, JIANG Qingsong1,2   

  1. 1. Faculty of Electronic Information Engineering, Huaiyin Institute of Technology, Huai’an 223003, China;
    2. Jiangsu Engineering Laboratory for Lake Environment Remote Sensing Technologies, Huaiyin Institute of Technology, Huai’an 223003, China
  • Received:2021-03-02 Online:2021-06-15 Published:2021-07-08

Abstract: Counter electrode is considered as a key component of dye-sensitized solar cells. Counter electrode, especially selenide counter electrode, has always been the focus of research. Nickel cobalt selenide film was prepared through the potentiostatic deposition-solvothermal-selenization process, and directly applied to dye-sensitized solar cells. Through the analysis of phase, morphology, and surface element valence state, NiCoSe4 film has been successfully synthesized on fluorine doped tin oxide (FTO) glass. NiCoSe4 film displays the sheet-like porous structure composed of nanoparticles. The results from electrochemical measurement demonstrate that NiCoSe4 film shows high electrocatalytic activity in electrolyte based on I-/I-3 redox pair. Dye-sensitized solar cell with NiCoSe4 film exhibits high photovoltaic performance. The corresponding photoelectric conversion efficiency is up to 7.84%, which is higher than that of platinum-based solar cells (6.95%).

Key words: dye-sensitized solar cell, counter electrode, NiCoSe4 film, porous structure, photovoltaic performance, electrocatalytic activity

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