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Indian Journal of Pure & Applied Physics (IJPAP) >
IJPAP Vol.50 [2012] >
IJPAP Vol.50(03) [March 2012] >
| Title: | Modification and designing of electrodeposited polypyrrole film for optoelectronic applications |
| Authors: | Sharma, I D
Sharma, V K
Dhawan, S K
Saini, P K |
| Keywords: | Conducting Polymer
Polypyrrole
Electrodeposition
Band Gap
Scanning Electron Microscopy
FTIR |
| Issue Date: | Mar-2012 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | The electrodeposited polypyrrole (PPY) film over ITO coated glass substrate
has been prepared and its current voltage response using Schottky emission
theory has been analyzed. The electrodeposition of PPY has ben carried out by
electrochemical polymerization of 0.2 M pyrrole monomer and cycling the potential
between -0.2V to 0.8 V at a scan rate of 20mV/s using KCl as supporting
electrolyte. The formation of polymer has been confirmed by X-ray diffraction
and FTIR measurements whereas the surface morphology has been observed using
scanning electron microscope. The band gap of PPY film has been calculated
using UV visible spectroscopy and found to be 2.4 eV. In addition, the
current-voltage response of deposited film was also recorded to evaluate its
electronic attributes such as barrier height (ØB) and constant
factor (β). The results revealed the ØB and β values of 0.314 eV and
1.72´10-4, respectively. These films may have potential applications
in electronic and optoelectronic sensing devices. |
| Page(s): | 184-187 |
| CC License: |  CC Attribution-Noncommercial-No Derivative Works 2.5 India |
| ISSN: | 0975-1041 (Online); 0019-5596 (Print) |
| Source: | IJPAP Vol.50(03) [March 2012]
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