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Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells
Published on: June 28, 2017
A cylindrical core-shell-like TiO2 nanotube array anode for flexible fiber-type dye-sensitized solar cells
Jiefeng Yu1, Dan Wang, Yining Huang
1BNLMS, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China. dczou@pku.edu.cn.
Nanoscale Research Letters
|June 30, 2011
Summary
Researchers developed a new method to create titanium dioxide nanotube (TNT) arrays for fiber-type dye-sensitized solar cells (F-DSSC). These TNT anodes improve solar cell efficiency by reducing defects and enhancing charge transfer.
Area of Science:
- Materials Science
- Nanotechnology
- Renewable Energy
Background:
- Fiber-type dye-sensitized solar cells (F-DSSC) offer a flexible platform for energy harvesting.
- Improving the efficiency of photoanodes is crucial for advancing F-DSSC technology.
Purpose of the Study:
- To develop a versatile anodization method for creating TiO2 nanotube (TNT) arrays.
- To evaluate the performance of these TNT arrays as photoanodes in semi- and all-solid F-DSSCs.
Main Methods:
- Anodization of Ti wires to form cylindrical core-shell-like TNT arrays.
- Thermal crystallization of the TNT arrays.
- Fabrication and testing of F-DSSCs using the prepared TNT photoanodes.
Main Results:
- The anodization method successfully produced thermally crystallized TNT arrays.
- Both semi- and all-solid F-DSSCs fabricated with TNT anodes demonstrated high power conversion efficiencies.
- Efficiencies were competitive with or superior to existing F-DSSC designs.
Conclusions:
- The novel TNT anodes offer enhanced performance in F-DSSCs.
- Reduced grain boundaries and defects in TNT anodes likely improve charge carrier transfer and suppress recombination.
- This method provides a promising route for efficient fiber-type solar cells.
