期刊
RARE METALS
卷 38, 期 4, 页码 316-320出版社
NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-014-0433-x
关键词
Dye-sensitized solar cell; Nanowires array; Photoanode; Anodic aluminum oxide
资金
- National Natural Science Foundation of China [51301041]
With the aim of reducing series resistance and increasing dye loading, novel dye-sensitized solar cell architecture was designed with TiO2 nanoparticle-coated Ag nanowires array as the photoanode. Ag nanowire array was prepared by anodic aluminum oxide (AAO) template-assisted electrochemical deposition route. Then, Ag nanowires were coated by TiO2 nanoparticles in hydrothermal process. The structures of the photoanode were characterized by field emission scanning electron microscopy (FESEM). Ag nanowires are covered by a layer of very fine nanoparticles with a diameter of less than 5nm. X-ray diffraction (XRD) and selected-area electron diffraction (SAED) show that Ag nanowires have a strong preferred orientation in (220) direction and the TiO2 coating layer is a polycrystalline structure. With this photoanode, 3.2% conversion efficiency is achieved for the cell sensitized with N3 dye.
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