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首页> 外文期刊>Journal of Energy and Natural Resources >Dye-Sensitized Solar Cells Using Natural Dyes Extracted from Roselle (Hibiscus Sabdariffa) Flowers and Pawpaw (Carica Papaya) Leaves as Sensitizers
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Dye-Sensitized Solar Cells Using Natural Dyes Extracted from Roselle (Hibiscus Sabdariffa) Flowers and Pawpaw (Carica Papaya) Leaves as Sensitizers

机译:使用从玫瑰茄(芙蓉花)和木瓜(番木瓜)叶中提取的天然染料作为敏化剂的染料敏化太阳能电池

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Dye-sensitized solar cells (DSSCs) were fabricated using natural dyes extracted from roselle flowers and carica papaya leaves extract as photosensitizers. The photovoltaic perfomance of the DSSCs were evaluated under 100 mAcm~(-2) light intensity. The roselle (Hibiscus Sabdariffa) extract sensitized solar cell gave a short circuit current density (Jsc) of 0.180 mAcm~(-2), an open circuit voltage (Voc) of 0.470 V, a fill factor (FF) of 0.552, and an overall solar energy conversion efficiency (η) of 0.046%. Also, the pawpaw leaves extract sensitized cell gave a Jsc of 0.094 mAcm~(-2), Voc of 0.433 V, FF of 0.544 yielding a conversion efficiency of 0.022%. The cell sensitized by the roselle extract shows better sensitization, which was in agreement with the broadest spectrum of the extract adsorbed on TiO_2 film. The sensitization performance related to interaction between the dye and TiO_2 surface is discussed.
机译:使用从玫瑰茄花和番木瓜叶提取物中提取的天然染料作为光敏剂制备了染料敏化太阳能电池(DSSC)。在100 mAcm〜(-2)的光强度下评估DSSC的光伏性能。玫瑰茄(Hibiscus Sabdariffa)提取物敏化太阳能电池的短路电流密度(Jsc)为0.180 mAcm〜(-2),开路电压(Voc)为0.470 V,填充因数(FF)为0.552,总太阳能转化效率(η)为0.046%。而且,木瓜叶提取物敏化的细胞给出0.094mAcm·(-2)的Jsc,0.433V的Voc,0.544的FF,产生0.022%的转化效率。玫瑰茄提取物致敏的细胞表现出更好的敏化性,这与吸附在TiO_2膜上的提取物的最宽光谱相符。讨论了与染料与TiO_2表面相互作用的增感性能。

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