Random laser action in dye-doped xerogel with inhomogeneous TiO2 nanoparticles distribution - Sciuti, Lucas Fiocco; Gonçalves, Tássia de Souza; Tomazio, Nathália Beretta; de Camargo, Andrea Simone Stucchi; Mendonça, Cleber Renato; De Boni, Leonardo (Journal of Materials Science: materials in electronics, 2019)