Synthesis of Nanostructured Polyaniline for Optoelectronic Devices and Gas Sensing Applications

摘要

In this work an attempt has been made to synthesis polyaniline nanorods using DBSA as dopant as well as template. The formation of the material has been confirmed by FTIR and UV-Visible measurements where as surface morphology has been observed using SEM. The spin coated polyaniline film has been prepared over ITO coated glass and its current voltage response has been analyzed using Schottky emission theory. The low value of optical band gap (2.7 eV) as well as barrier height (0.69 eV) reflects use for optoelectronic devices. The change in optical absorbance with ammonia gas concentration in reversible manner shows good gas sensing properties.