Hang, Phung, Nguyen Huu Ke, Duong Ai Phuong, & Le Vu Tuan Hung.
" Enhancing the photocatalytic activity under visible light of chromium doped TiO2 thin film prepared by sol-gel method." <em>VNU Journal of Science: Mathematics - Physics</em> [Online], 27.4 (2011): n. pag. Web.  9 May. 2024