A Composite Photoanode Based on P25/TiO2 Nanotube Arrays/ Flower-Like TiO2 for High-Efficiency Dye-Sensitized Solar Cells

In this work, a three-layer TiO2 composite film consisting of flower-like TiO2 （Flo-TiO2） as overlayer, TiOa nanotube arrays as interlayer and TiO2 nanoparticle （P25） as underlayer was fabricated as the photoelectrode of dyesensitized solar cells （DSSCs）. Due to the introduction of Flo-TiO2, the thr...

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Veröffentlicht in:	Acta metallurgica sinica : English letters 2016-09, Vol.29 (9), p.840-847
Hauptverfasser:	Hu, Jing-Hua, Tong, Sheng-Qiang, Yang, Ying-Ping, Cheng, Jie-Jie, Zhao, Li, Duan, Jin-Xia
Format:	Artikel
Sprache:	eng
Schlagworte:	Arrays Characterization and Evaluation of Materials Chemistry and Materials Science Corrosion and Coatings Dye-sensitized solar cells Dyes Efficiency Electrodes Electrolytes Energy conversion efficiency Ethanol Interlayers Light Materials Science Metallic Materials Morphology Nanoparticles Nanotechnology Nanotubes Organometallic Chemistry P25 Photoanodes Photoelectricity Scanning electron microscopy Spectroscopy/Spectrometry Spectrum analysis Titanium dioxide Tribology 二氧化钛光电转换性能光阳极复合薄膜染料敏化太阳能电池纳米TiO2 纳米管阵列
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Zusammenfassung:	In this work, a three-layer TiO2 composite film consisting of flower-like TiO2 （Flo-TiO2） as overlayer, TiOa nanotube arrays as interlayer and TiO2 nanoparticle （P25） as underlayer was fabricated as the photoelectrode of dyesensitized solar cells （DSSCs）. Due to the introduction of Flo-TiO2, the three-layer composite film has strong lightscattering ability. Then, we have investigated and compared the photoelectric conversion properties of DSSCs based on three-layer structure （P25/TNT arrays/Flo-TiO2） photoelectrode and double-layer film （P25/TNT arrays） photoelectrode. It is found that DSSCs based on three-layer structure exhibit a high power conversion efficiency of 6.48% compared with the DSSCs composed of double-layer film （5.11%）.
ISSN:	1006-7191 2194-1289
DOI:	10.1007/s40195-016-0460-8