A multifunctional photoanode made of titania submicrospheres and titania nanoparticles modified titania nanotube arrays on FTO glass for dye-sensitized solar cells

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• 作者：Xiao-Dong Qiao ; Yi-Yi Liu ; Guo-Lei Huang ; Bing-Xin Lei ; ^{leibx@hainnu.edu.cn" class="auth_mail" title="E-mail the corresponding author} ; Wei Sun ; Zhen-Fan Sun ; ^{sun@hainnu.edu.cn" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Titania ; Nanotube ; Submicrosphere ; Hierarchical structure ; Dye-sensitized solar cell
• 刊名：Materials Science in Semiconductor Processing
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：57
• 期：Complete
• 页码：99-104
• 全文大小：1023 K

文摘

We have proposed a novel engineered multifunctional photoanode which consists of one-dimensional (1D) TiO₂ nanotube arrays modified by TiO₂ nanoparticles as a bottom layer and three-dimensional (3D) TiO₂ submicrospheres as a top layer by a simple one-time chemical bath deposition method. This 1D-3D bilayer photoanode simultaneously possesses the incompatible features such as high specific surface area, pronounced light-scattering ability, and fast electron transport. The novel 1D-3D bilayer photoanode demonstrates a power conversion efficiency (PCE) of 6.93%, leading to a 26.5% increment of PCE compared with that of TiO₂ bare nanotube arrays (5.48%).