International Journal of
Physical Sciences

  • Abbreviation: Int. J. Phys. Sci.
  • Language: English
  • ISSN: 1992-1950
  • DOI: 10.5897/IJPS
  • Start Year: 2006
  • Published Articles: 2573

Full Length Research Paper

Synthesis and characterization on electrical properties of conducting polymer of polypyrrole and polypyrrole/cadmium sulfide composites

Nur Zu Ira Bohari1, Zainal Abidin Talib1*, Mohd Amirul Syafiq Mohd Yunos1 and Anuar Kassim2      
1Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia. 2Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia.  
Email: [email protected]

  •  Accepted: 09 February 2012
  •  Published: 02 March 2012

Abstract

A series of conducting polymer polypyrrole (PPy) and polypyrrole/cadmium sulfide (PPy/CdS) composites were successfully synthesized using the chemical reaction method. PPy/CdS composites were prepared with CdS concentration percentages ranging from 2 to 10%. From the X-ray diffraction (XRD) results, the XRD pattern showed evidence of conducting structure of polymer PPy and PPy/CdS composites. The spectrum clearly indicated that PPy polymer was amorphous. From the PPy/CdS composites spectrum, the six major peaks that were observed for all the samples were well known peaks that originated from CdS. From the results obtained, it shows that the conductivity of conducting polymer PPy and PPy/CdS composites at the low temperature range increased with the increase in percentage of CdS. The electrical conductivity increased from 2.85 × 10-7 to 1.66 × 10-5 S/cm in the low temperature range of 100 to 300K. While for the PPy/CdS composites, the increase of conductivity showed the same trend with the low temperature studied where the values increase from 2.11 × 10-5 to 8.74 × 10-5 S/cm.

 

Key words: Conducting polymer, polypyrrole, polypyrrole/cadmium sulfide composites, electrical Conductivity.