title: Synthesis and Characterization of KMnF3:Yb/Er@KMnF3 Upconversion Luminescent Nanocrystals.
abstract: A hydrothermal method has been developed for preparation of monodispersed and flake KMnF3 upconversion luminescent nanocrystals doped with Yb3+ and Er3+. The prepared nanocystals materials were characterized by XRD, EDX, SEM and TEM. The upconversion emission spectra show that the KMnF3:Yb/Er nanocrystals has a single-narrow-band emission centered at 660 nm. This is the firstly reported hydrothermal procedure for synthesis of the flake KMnF3 nanocrystals with single-narrow-band upconversion luminescence. Furthermore, a core-shell structure was introduced to synthesize the KMnF3:Yb/Er@KMnF3 nanocrystals and higher luminescence intensity was obtained.
authors.forename: Wenyue
authors.initials: W
authors.lastname: Hou
authors.forename: Jing
authors.initials: J
authors.lastname: Xu
authors.forename: Xiuying
authors.initials: X
authors.lastname: Wang
authors.lastname: Lifen Du
authors.forename: Chusen
authors.initials: C
authors.lastname: Huang
authors.forename: Nengqin
authors.initials: N
authors.lastname: Jia