Kaushik Ajeet, Kumar Jitendra, Tiwari M K, Khan R, Malhotra B D, Gupta Vinay, Singh S P
Biomolecular Electronics & Conducting Polymer Research Group, National Physical Laboratory, Dr. K. S. Krishnan Marg, New Delhi 110012, India.
J Nanosci Nanotechnol. 2008 Apr;8(4):1757-61.
Polyaniline (PANI)-ZnO nanocomposite thin film has been successfully fabricated on glass substrates by using vacuum deposition technique. The as-grown PANI-ZnO nanocomposite thin films have been characterized using X-ray diffraction, Scanning Electron Microscopy, Atomic Force Microscopy, UV-visible spectrophotometer and Fourier Transform Infrared (FTIR) spectroscopy, respectively. X-ray diffraction of as-grown film shows the reflection of ZnO nanoparticles along with a broad peak of PANI. The surface morphology of nanocomposite films has been investigated using scanning electron microscopy and atomic force microscopy. The hypsochromic shift of the UV absorption band corresponding to pi-pi* transition in polymeric chain of PANI and a band at 504 cm(-1) due to ZnO nanoparticles has been observed in the FTIR spectra. The hydrogen bonding between the imine group of PANI and ZnO nanoparticle has been confirmed from the presence of the absorbance band at 1151 cm(-1) in the FTIR spectra of the nanocomposite thin films.
采用真空沉积技术在玻璃基板上成功制备了聚苯胺（PANI）-氧化锌（ZnO）纳米复合薄膜。分别利用X射线衍射、扫描电子显微镜、原子力显微镜、紫外可见分光光度计和傅里叶变换红外（FTIR）光谱对生长态的PANI-ZnO纳米复合薄膜进行了表征。生长态薄膜的X射线衍射显示出ZnO纳米颗粒的衍射峰以及PANI的一个宽峰。利用扫描电子显微镜和原子力显微镜研究了纳米复合薄膜的表面形貌。在FTIR光谱中观察到了对应于PANI聚合物链中π-π*跃迁的紫外吸收带的蓝移以及由于ZnO纳米颗粒而产生的位于504 cm⁻¹处的一个吸收带。纳米复合薄膜的FTIR光谱中在1151 cm⁻¹处存在吸收带，证实了PANI的亚胺基团与ZnO纳米颗粒之间存在氢键。
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