%0 Journal Article %T Photoluminescence and structural properties of the nitrogen doped TiO2 and the influence of SiO2 and Ag nanoparticles %A Nila, Andreea %A Baibarac, Mihaela %A Udrescu, Adelina %A Smaranda, Ion %A Mateescu, Alice %A Mateescu, Gheorghe %A Mereuta, Paul %A Negrila, Constantin Catalin %J Journal of Physics: Condensed Matter %V 31 %N 37 %P 15 %@ 0953-8984 %D 2019-09-18 %~ DeepDyve