Fabrication of polypyrrole/TiO2 nanocomposite via electrochemical process and its photoconductivity
Size-controllable and vertically-oriented TiO2 nanotube (TNT) arrays were fabricated using anodic oxidation method from pure titanium sheets in electrolyte solutions.Then with the TNT arrays as the working electrode,a thin film of polypyrrole (Ppy) was synthesized into the TNT arrays via the electrochemical polymerization.During the process,the appearance of redox peaks in cyclic voltammetry curves of the resulting films indicates the occurrence of polymerization.The morphology,the molecular structure,crystallization and optical properties of the TNT arrays and the resulting polymer were investigated by field-emission scanning electron microscopy (FESEM),X-ray diffractometry (XRD),Fourier transform infrared spectroscopy (FTIR),and UV-vis spectrum analysis,respectively.A dual-layered photoreceptor containing the nanocomposite film as the charge generation layer (CGL) was designed and fabricated.It is found that the photoreceptor based on Ppy/TiO2 nanotubes as CGL exhibits remarkable photoconductive performance.
polypyrrole titania nanocomposite electrochemical polymerization photoconductivity
OUYANG Mi BAI Ru XU Yi ZHANG Cheng MA Chun-an WANG Mang CHEN Hong-zheng
State Key Laboratory of Breeding Base of Green Chemistry-Synthesis Technology,Zhejiang University of Department of Polymer Science and Engineering,State Key Laboratory of Silicon Materials,Zhejiang Uni State Key Laboratory of Breeding Base of Green Chemistry-Synthesis Technology,Zhejiang University of Department of Polymer Science and Engineering,State Key Laboratory of Silicon Materials,Zhejiang Uni
国际会议
2009 Frontier Symposium of China Postductors on Materrials Science(2009年中国博士后材料科学前言论坛)
长沙
英文
1572-1577
2009-11-22（万方平台首次上网日期，不代表论文的发表时间）