Low-Cost Dye-Sensitized Solar Cells Based on Interconnected FTO-Activated Carbon Nanoparticulate Counter Electrode Showing High Efficiency
Low-Cost Dye-Sensitized Solar Cells Based on Interconnected FTO-Activated Carbon Nanoparticulate Counter Electrode Showing High Efficiency作者机构：Department of Chemistry Faculty of Science University of Peradeniya Peradeniya 20400 Sri Lanka Postgraduate Institute of Science University of Peradeniya Peradeniya 20400 Sri Lanka Graduate School of Engineering Toyota Technological Institute 2-12-1 Hisakata Tempaku-ku Nagoya 468-8511 Japan
出 版 物：《材料科学与工程（中英文A版）》 (Journal of Materials Science and Engineering A)
年 卷 期：2015年第5卷第9期
页 面：361-368页
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）]
主 题：染料敏化太阳能电池 高效太阳能电池 颗粒活性炭 纳米电极 FTO 低成本 喷雾热解法 转换效率
摘 要：The development of low-cost DSCs (Dye-sensitized solar cells) based on activated carbon counter electrodes is described. Although, the use of activated carbon in CEs (Counter electrodes) has been documented, the efficiencies obtained in such solar cells have been low, particularly, due to low electrical conductivity of such counter electrodes. Our design of the counter electrode eliminates this problem by using an in-situ formed FTO (Fluorine-doped tin oxide)-activated carbon composite on FTO surface as the CE. The FTO particles are prepared by atomized spray pyrolysis method from a spray solution containing dispersed activated carbon particles. The CE thus prepared has a reasonable electronic conductivity and the composition of the spray solution was optimized to give the highest conversion efficiency and the thickness of the CE was optimized by controlling the spray duration and deposition temperature. The best DSC based on AC-FTO CE has a JSC of 18.98 mA·cm-2, a VOC of 0.709 V, and a FF (Fill factor) of 0.563 giving a conversion efficiency of 7.6%. The data for Pt-FTO CE based DSC are a JSC of 18.78 mA·cm-2, a VOC of 0.732 V, and a FF of 0.688 with a conversion efficiency of 9.5%.
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