title: Enhanced Luminescence of Eu-Doped TiO2Nanodots.
abstract: Monodisperse and spherical Eu-doped TiO2nanodots were prepared on substrate by phase-separation-induced self-assembly. The average diameters of the nanodots can be 50 and 70 nm by changing the preparation condition. The calcined nanodots consist of an amorphous TiO2matrix with Eu3+ions highly dispersed in it. The Eu-doped TiO2nanodots exhibit intense luminescence due to effective energy transfer from amorphous TiO2matrix to Eu3+ions. The luminescence intensity is about 12.5 times of that of Eu-doped TiO2film and the luminescence lifetime can be as long as 960 μs.
authors.affiliation: Department of Material Science and Engineering, State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310027, People's Republic of China. wengwj@zju.edu.cn.
authors.forename: Ming
authors.initials: M
authors.lastname: Luo
authors.forename: Kui
authors.initials: K
authors.lastname: Cheng
authors.forename: Wenjian
authors.initials: W
authors.lastname: Weng
authors.forename: Chenlu
authors.initials: C
authors.lastname: Song
authors.forename: Piyi
authors.initials: P
authors.lastname: Du
authors.forename: Ge
authors.initials: G
authors.lastname: Shen
authors.forename: Gang
authors.initials: G
authors.lastname: Xu
authors.forename: Gaorong
authors.initials: G
authors.lastname: Han