| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 179753 | Electrochemistry Communications | 2012 | 4 Pages |
Highly uniform TiO2 nanotube arrays with regular periodical sidewall morphology were fabricated by both alternating-voltage (AV) and alternating-current (AC) anodization methods. It was revealed that the AC anodization provided a better control to the sidewall morphology than the AV anodization. Various bamboo-shaped nanotube arrays were prepared by using AC anodization with different current functions. Dye-sensitized solar cells (DSSCs) fabricated using different TiO2 nanotube arrays showed that the AC anodization with square-wave driving current gave the highest photo energy conversion efficiency.
Graphical abstractFigure optionsDownload full-size imageDownload as PowerPoint slideHighlights► We demonstrate a novel alternating current method for the fabrication of TiO2 nanotube arrays. ► TiO2 NT with different tube morphologies can be achieved by applying different current signals. ► The method can be applied to improve the photo-energy conversion efficiency of DSSC. ► This new method has potentials in the fabrication of complex 3D TiO2 architectures.
