High Photoconductive Nanocomposite Film Based on TiO<,2> Nanotube Arrays and Copper Phthalocyanine

摘要：

Size-controllable and vertically oriented TiO<,2> nanotube arrays were fabricated using anodic oxidation of pure titanium sheets in electrolyte solutions, and were characterized by field-emission scanning electron microscope (FESEM), transmission electron microscope (TEM) and X-ray diffraction (XRD) patterns. It was found that the dimensions and the ordered morphology of TiO<,2> nanotubes could be tuned by altering anodic voltage, oxidation time and annealing temperature. A double-layered photoconductive device (Au/copper phthalocyanine (CuPc)/TiO<,2> nanotubes/titanium) was designed and fabricated based on the TiO<,2> arrays. The I-V curves demonstrated typical heterojunction characteristics and remarkable photoconductive performance with the current value increasing by 1 or 2 orders of magnitude when exposed to light from dark.

关键词： TiO<,2> Nanotube arrays Composites Photoconduction

作者: Mi Ouyang Bai Ru Han Yangang Yang Ligong Wang Mang Chen, Hongzheng

作者单位: Department of Polymer Science and Engineering, State Key Lab of Silicon Materials, Zhejiang Universi Department of Polymer Science and Engineering, State Key Lab of Silicon Materials, Zhejiang Universi Department of Polymer Science and Engineering, State Key Lab of Silicon Materials, Zhejiang Universi

会议类型: 国际会议

会议名称: 第六届影像科学与硬拷贝技术国际会议(ICISH08)(The 6th International Conference on Imaging Science and Hardcopy)

会议地点: 广东湛江

会议语种:英文

页码: 64-66,89

在线出版日期: 2008-01-10（万方平台首次上网日期，不代表论文的发表时间）