Facile and fast one-pot synthesis of ultra-long porous ZnO nanowire arrays for efficient dye-sensitized solar cells

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• 作者：Lulu Chen ; Xiaodong Li ; Lili Qu ; Caitian Gao ; Youqing Wang ; Feng Teng ; Zhenxing Zhang ; Xiaojun Pan ; Erqing Xie
• 关键词：Porous ZnO nanowire arrays ; One-pot ; Ammonium hydroxide ; Hydrothermal method ; Dye-sensitized solar cells
• 刊名：Journal of Alloys and Compounds
• 出版年：15 February, 2014
• 年：2014
• 卷：586
• 期：Complete
• 页码：766-772
• 全文大小：2059 K

文摘

Porous ZnO nanowire (NW) arrays were synthesized by a one-pot ammonium hydroxide-assisted hydrothermal method. By controlling the volume proportion between the solution and the bottle, ZnO NW arrays as long as 20 渭m have been obtained in a short duration of 8 h, indicating a high growth rate of 2.5 渭m h^{鈭?/sup>1. Further prolonging the hydrothermal reaction time to 20 h, ZnO NWs become porous, which is a key advantageous feature for ZnO NW arrays based dye-sensitized solar cells (DSSCs). By TiO₂ coating and N-719 sensitizing, the power conversion efficiency of the porous ZnO NW-TiO₂ based DSSC reaches 3.06%.}