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Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells
Published on: June 28, 2017
A three-dimensional hierarchical TiO2 urchin as a photoelectrochemical anode with omnidirectional anti-reflectance
Weina Ren1, Haifeng Zhang, Dezhi Kong
1MOE Key Laboratory of Advanced Micro-structured Materials, School of Physics Science and Engineering, Tongji University, Shanghai 200092, P. R. China. cwcheng@tongji.edu.cn.
Abstract:
In this communication, we report an innovative electrode design of 3D hierachical TiO2 urchin assembled with a hollow TiO2 spheres core and radial TiO2 nanorod shell prepared via a facile colloid template route combined with atomic layer deposition and a hydrothermal growth process. The periodically hierarchical TiO2 urchin exhibits excellent omnidirectional anti-reflectance properties in a wide range of wavelengths and angles of incidence (AOI). When tested as a photoanode for PEC water splitting, a greatly improved photoelectrochemical water splitting performance is obtained in comparison to that of TiO2 microspheres due to the improved light harvesting and charge collection efficiency.
