Electrosynthesis and study of some physical properties of conductive and solid-state gas sensing polydiphenylamine (original) (raw)

Synthesis and Characterization of Thin Films of Conducting Polymers for Gas Sensing Applications

2014

This chapter elaborates the significant results obtained through the characterization of polymer polyaniline (PANI) synthesized by using oxidative and emulsion polymerization process. The detailed experimental procedure of both the synthesis processes is explained in chapter 4. In present work, all the PANI thin films were prepared by using spin coating method. The deposited thin films of PANI were characterized by using, UV-Visible spectroscopy, FTIR spectroscopy, Scanning Electron Microscopy (SEM), Nuclear Magnetic Resonance (H-NMR). The nano-particle sizes of PANI were confirmed by Transmission Electron Microscopy (TEM) and X-Ray Diffraction (XRD). The conductivity of PANI films was measured by four probe method. The Refractive Index (R.I.) and thickness measurement of the deposited films were conducted with the help of ellipsometry characterization. The ohmic behavior of the prepared films was determined by current-voltage (I-V) analyzer. The mechanism of interaction between PAN...

Advances in sensors based on conducting polymers

Journal of Scientific & Industrial Research, 2006

Conducting polymers with a blend of interesting optical and mechanical properties can be used in situations where inorganic materials are not suitable. Synthetic capabilities as well as fabrication techniques have been developed to such an extent that molecular electronic devices based on conducting polymers can be designed, marking evolution of a sophisticated technology in the field of microelectronics. These electro-active conducting polymers cover a broad spectrum of applications from solid-state technology to biotechnology and sensor technology. Present paper addresses the various issues on sensors for chemical and biochemical species.