采用较高粘度的有机溶液作为阳极氧化电解质溶剂制备了TiO2纳米管阵列. 通过探讨阳极氧化工艺参数对纳米管形貌的影响, 研究出高长径比TiO2纳米管阵列的制备工艺, 同时对TiO2纳米管作为染料敏化太阳能电池光阳极的光电性能进行了测试, 并讨论了TiO2纳米管的形貌对电池性能的影响. 结果表明：提高氧化电压和延长时间有利于获得高长径比纳米管, 在含0.5wt%NH4F乙二醇电解质中50V氧化17h可制备出长径比为313.6的TiO2纳米管阵列. TiO2纳米管(在含0.5wt%NH4F乙二醇电解质中40V氧化13h)作为染料敏化太阳能电池光阳极可得到开路电压为0.723V、短路电流为2.15mA/cm2的光电性能.
TiO2 nanotube arrays were fabricated by anodization of titanium foils in the viscous nonaqueous electrolytes. Effects of anodization parameters on TiO2 nanotube were intensively studied. The photo-electrochemical property of dye sensitized solar cell (DSSC) based on TiO2 nanotube arrays was tested and the influence of TiO2 nanotube morphology on the performance of DSSC was investigated. The result indicates that the growth of TiO2 nanotube arrays with high aspect ratio depends highly on the nonaqueous solution which is enhanced by the applied potential and anodizing time. TiO2 nanotube arrays with aspect ratio up to 313.6 are fabricated in 0.5wt%NH4F in glycerol glycol at 50V for 17h. DSSC based on TiO2 nanotube arrays (fabricated in 0.5wt%NH4F in glycerol at 40V for 13h)exhibits an open circuit potential of 0.723V, 2.15mA/cm2 short circuit current density.
参考文献
| [1] |
- 下载量()
- 访问量()
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%