Improved conductivity induced by photodesorption in Sn´O IND.2´ thin films grown by a sol-gel dip coating technique - Scalvi, Luis Vicente de Andrade; Messias, Fábio Rogério; Souza, A. E.; Siu Li, Máximo; Santilli, C V; Pulcinelli, Sandra Helena (Journal of Sol-Gel Science and Technology, 1998)