Title :
Photoacoustic characterization and FTIR spectroscopic studies on conducting polyaniline doped with different sulphonic acids
Author :
Yunus, W.M.M. ; Fanny, C.Y.J. ; Ab Rahman, M.Z.
Author_Institution :
Dept. of Phys., Universiti Putra Malaysia, Serdang Selangor, Malaysia
Abstract :
The open photoacoustic cell technique is used to measure the thermal diffusivity value of conducting polyaniline doped with different sulphonic acids. It is based on the measuring of the photoacoustic signal as a,function of modulation frequency. In the present work the measured thermal diffusivity and electrical conductivity values were (4.55-6.02)/spl times/10/sup -2/ cm/sup 2//s. and of (4.48/spl times/10/sup -3/-3.22) S cm/sup -1/ respectively. The IR absorbance spectra are also reported.
Keywords :
Fourier transform spectra; conducting polymers; electrical conductivity; infrared spectra; photoacoustic effect; thermal diffusivity; FTIR spectra; absorbance spectra; conducting polyaniline; conducting polymer; electrical conductivity; four-point probe; modulation frequency dependence; open photoacoustic cell technique; sulphonic acid doped polyaniline; thermal diffusivity; Conductivity measurement; Electric variables measurement; Frequency; Human computer interaction; Infrared spectra; Microphones; Optical polymers; Physics; Spectroscopy; Thermal conductivity;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO/Pacific Rim 2001. The 4th Pacific Rim Conference on
Conference_Location :
Chiba, Japan
Print_ISBN :
0-7803-6738-3
DOI :
10.1109/CLEOPR.2001.970880
