Abstract
Conducting polypyrrole-wide band gap semiconducting silica (SiO 2) nanocomposites are prepared by polymerizing pyrrole in the presence of colloidal silicon oxide sol. The nanocomposites are characterized by Fourier transform infrared spectrometer and scanning electron microscope. Three dimensional variable range hopping conduction process is involved in electric conduction. The current density ( J ) satisfies the power law, J ∝ V m , with 1 < m < 2 at voltage V > 0.5 V . Optical absorption spectra reveal that the π – π ∗ transition of polypyrrole shifts from 3.9 eV to 4.58 eV with increase of silica concentration.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
