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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Kuang, Dai-Bin Su, Cheng-Yong Chen, Hong-Yan Liao, Jin-Yun Lei, Bing-Xin |
| Copyright Year | 2012 |
| Abstract | Hierarchical anatase TiO2 nanowire (HNW) arrays consisting of long single crystalline nanowire trunks and short single crystalline nanorod branches have been synthesized on Ti-foil substrate via a two-step hydrothermal growth process. The formation of the HNW arrays based on anatase TiO2 nanowire (NW) arrays can be ascribed to the crystallographic relationship between trunk and branch. The power conversion efficiency of dye-sensitized solar cells (DSSCs) based on such a HNW photoelectrode (4.51%) shows a significant enhancement compared to TiO2 nanowire (NW) array photoelectrode (3.12%) with similar thickness (∼15 μm in nanowire length), which can be attributed to more dye loading, superior light scattering ability and comparable electron transport rate for the former. Furthermore, flexible DSSC using TiO2 HNW arrays on Ti substrate as working electrode and transparent PEDOT/ITO-PET prepared via in situelectrodeposition as counter electrode shows a comparable photovoltaic performance to the rigid Pt/FTO-glass cell. A power conversion efficiency as high as 4.32% (Jsc = 7.91 mA cm−2, Voc = 796 mV, FF = 0.69) is obtained for the first time for fully flexible DSSC based on hierarchical TiO2 nanowire arrays and Pt-free counter electrode. |
| Starting Page | 5750 |
| Ending Page | 5757 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 17545692 |
| Volume Number | 5 |
| Issue Number | 2 |
| Journal | Energy & Environmental Science |
| DOI | 10.1039/c1ee02766b |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Anatase Nanowire Hydrothermal circulation Dye-sensitized solar cell Micrometre Dye Scattering Working electrode Poly(3 4-ethylenedioxythiophene) Electrode Solar cell |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering |
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