title: Intense ultraviolet upconversion emission from water-dispersed colloidal YF3:Yb3+/Tm3+ rhombic nanodisks.
abstract: Intense ultraviolet upconversion emission has been observed in water-dispersed uniform rhombic nanodisks (side length of ~14 nm and thickness of ~2.5 nm) of YF3 co-doped with Yb(3+) sensitizer and Tm(3+) activator ions, when excited at ~980 nm.
authors.affiliation: School of Chemical Engineering and Technology, Harbin Institute of Technology, 150001 Harbin, People's Republic of China. guanying@buffalo.edu yangchh@hit.edu.cn.
authors.forename: Hailong
authors.initials: H
authors.lastname: Qiu
authors.forename: Guanying
authors.initials: G
authors.lastname: Chen
authors.forename: Rongwei
authors.initials: R
authors.lastname: Fan
authors.forename: Liming
authors.initials: L
authors.lastname: Yang
authors.forename: Cheng
authors.initials: C
authors.lastname: Liu
authors.forename: Shuwei
authors.initials: S
authors.lastname: Hao
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Sailor
authors.forename: Hans
authors.initials: H
authors.lastname: Ågren
authors.forename: Chunhui
authors.initials: C
authors.lastname: Yang
authors.forename: Paras N
authors.initials: PN
authors.lastname: Prasad