Bilayer Structured Nanowire-array and Nanotube-cluster TiO2 Photoanode for Efficient Dye-sensitized Solar Cells  

作　　者：YU Jun ZHANG Chengkai ZHUANG Jia QIN Haiyang HE Quangui LIANG Qiumei 

机构地区：[1]School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500, P.R.China

出　　处：《Chemical Research in Chinese Universities》2015年第3期412-417,共6页高等学校化学研究（英文版）

基　　金：the National Natural Science Foundation of China（No.51209024） and the Science and Technology Plan of Sichuan Province, China（No.2010JY0122）.

摘　　要：Nanowire-array nanotube-cluster bilayer TiO2 films, consisting of nanowire-array at the bottom layer and nanotube-cluster at the top layer were prepared via a two-step hydrothermal method. One step was a growth process and the other was an etching process. Etching process was used to acquire nanowire-array with a small diameter of 20--25 nm of the nanowire and nanotube-cluster. The bilayer nanostructured films were then modified with TiCI4. Villous TiO2 attached to both the inside and outside wails of the nanotube cluster was obtained only by changing the traditional concentration of TiCla-treatment to 0.2 mol/L. The novel bilayer photoanode finally revealed a higher effi- ciency of 5.25% when used in dye-sensitized solar cells（DSSCs）.Nanowire-array nanotube-cluster bilayer TiO2 films, consisting of nanowire-array at the bottom layer and nanotube-cluster at the top layer were prepared via a two-step hydrothermal method. One step was a growth process and the other was an etching process. Etching process was used to acquire nanowire-array with a small diameter of 20--25 nm of the nanowire and nanotube-cluster. The bilayer nanostructured films were then modified with TiCI4. Villous TiO2 attached to both the inside and outside wails of the nanotube cluster was obtained only by changing the traditional concentration of TiCla-treatment to 0.2 mol/L. The novel bilayer photoanode finally revealed a higher effi- ciency of 5.25% when used in dye-sensitized solar cells（DSSCs）.

关 键 词：Bilayer structure ETCHING Titanium oxide PHOTOANODE Dye-sensitized solar cell 

分 类 号：TB383[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]