材料科学
聚吡咯
X射线光电子能谱
扫描电子显微镜
分析化学(期刊)
傅里叶变换红外光谱
薄膜
兴奋剂
光谱学
等离子体聚合
聚合
光电子学
纳米技术
化学工程
复合材料
聚合物
有机化学
化学
工程类
物理
量子力学
作者
Chuan Li,J.H. Hsieh,Y.T. Lee
标识
DOI:10.1016/j.surfcoat.2017.01.049
摘要
Polypyrrole films deposited on glass or silicon substrates by plasma polymerization under different radio frequency power are investigated in this study. Targeting on electrical conduction, lower RF power for deposition is particularly chosen. The microstructures of deposited films were carefully studied by following instruments; Scanning electron microscope for surface morphology; Fourier transform infrared spectroscopy for the molecular vibrational modes; X-ray photoelectron spectroscopy for chemical binding energy; Energy-dispersive X-ray spectroscopy for elemental composition; current-voltage measure for electrical resistance. Results from these material characterizations indicate that a stronger plasma field breaks down the pyrrole rings while creates more nitrogen groups containing N − H, C − N+ or C = N+. However, a certain amount of undamaged pyrrole rings were deposited into films. These intact pyrrole rings make electrical conduction to be possible in films. From the linear regression for the measured current-voltage data, we found that lower RF power (10 W) can improve the electrical conduction; however, a noticeable enhancement in conduction is achieved by the doping of iodine such that the film's electrical resistance is reduced to almost half of other un-doped pyrrole films.
科研通智能强力驱动
Strongly Powered by AbleSci AI