Thermally Stable Boron-Doped Multiwalled Carbon Nanotubes as a Pt-free Counter Electrode for Dye-Sensitized Solar Cells

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• 作者：Yow-An Leu ; Min-Hsin Yeh ; Lu-Yin Lin ; Ta-Jen Li ; Ling-Yu Chang ; Sheng-Yen Shen ; Yan-Sheng Li ; Guan-Lin Chen ; Wei-Hung Chiang ; Jiang-Jen Lin ; Kuo-Chuan Ho
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2017
• 出版时间：January 3, 2017
• 年：2017
• 卷：5
• 期：1
• 页码：537-546
• 全文大小：617K
• ISSN：2168-0485

文摘

A polymeric dispersant is usually used for preparing the uniform multiwalled carbon nanotubes (CNT) film for replacing Pt as the catalyst on the counter electrode (CE) of dye-sensitized solar cells (DSSCs). However, it is necessary to remove the polymeric dispersant completely due to its nonconductive property. Herein, boron-doped CNT (BCNT) with enhanced thermal stability, as the benefit to the dispersant removal, was prepared as the catalyst on the CE of a DSSC, and the cells with pristine CNT and Pt as the catalyst on the CEs were compared. The BCNT based DSSC shows the best light-to-electricity conversion efficiency (η) of 7.91 ± 0.21%, which is higher than that of the cell with a CNT CE (η = 6.02 ± 0.19%) and is comparable to that of the cell with a Pt CE (η = 8.03 ± 0.11%).