Abstract
Films of polyaniline doped with dodecylbenzenesulphonic acid (DBSA) and poly(methyl methacrylate) (PMMA) blends were studied with and without compatibilising agent “hydroquinone”. Hydroquinone was used to maximize solubility and to make it compatible with polymethylmethacrylate (PMMA) to get uniform and homogenous films on indium tin oxide ITO coated glass. Current density measurement as a function of voltage (J–V) and capacitance voltage (C–V) measurements at different temperature were carried out. The observed J–V and C–V characteristics can be satisfactorily fitted using the modified Schottky equations. The junction parameters were strongly influenced by hydroquinone. From C–V characteristics, the built-in voltage and charge carriers concentration were also calculated and discussed.
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