Conductive polyanilines are synthesized by doping with inorganic and organic acids, namely Hydrochloric acid (HCl) and ± 10 - camphor sulfonic acid (CSA). The direct current (DC) conductivities ( σ DC ) are found to be about 9.5 ′ 10 - 8 , 1.8, and 95.8 S/cm for PANI base, PANI(HCl) and PANI(CSA), respectively. σ DC is measured down to a temperature of ~100 K and the apparent change in the activation energies are found to be 98.16, 74.40, and 57.24 meV for PANI base, HCl, and CSA dopings respectively. σ DC is less temperature dependent near room temperature, further decrease in temperature the σ DC is strongly dependent. Upon the inspection of AC conductivities ( σ AC ) versus frequency curves, it can be inferred that the conduction process is noticeably influenced upon doping and within the dopants. σ AC has shown classical plateau (DC-AC crossover) region, nonetheless shifted crossover frequency (critical frequency) upon doping is rather interesting. Critical frequencies ( w c ) are obtained from universal power-law for all samples . The variation in the dielectric properties can be attributed to the dopant incorporation. In material characterization, successful doping is corroborated by FTIR, UV-vis spectroscopy and slight influence upon doping can also be seen in thermal properties. Intense p hotoluminescence (PL) peaks at 322.5, 581.4 and 644.2 nm are observed. PANI(CSA) exhibited highest peak intensity followed by PANI(HCl) and PANI base.
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