Enhanced structural and optical properties of the polyaniline-calcium tungstate (PANI-CaWO4 nanocomposite for electronics applicationsN. Aloysius Sabu, Xavier Francis, Jose Anjaly, S. Sankararaman and Thomas VargheseEur. Phys. J. Plus, 132 6 (2017) 290DOI: https://doi.org/10.1140/epjp/i2017-11562-1