title: Spatially resolved cathodoluminescence of individual BN-coated CaS:Eu nanowires.
abstract: Luminescence properties of individual BN-coated CaS:Eu nanowires have been studied by high-spatial-resolution cathodoluminescence (CL) spectroscopy. A broad red light-emitting band from an individual nanowire has been observed. Detailed local CL studies on the nanowires reveal spatial variations of luminescence from the structure surfaces toward their cores. Such variations are attributed to the different Eu2+ ions surroundings within the surface and core nanowire regions. The attractive luminescence properties are meaningful for fundamental studies of nanoscaled luminescent materials and may be of interest for novel optoelectronic applications.
authors.affiliation: International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science, Namiki 1-1, Tsukuba, Ibaraki, Japan. Lin.Jing@nims.go.jp
authors.forename: Jing
authors.initials: J
authors.lastname: Lin
authors.forename: Benjamin
authors.initials: B
authors.lastname: Dierre
authors.forename: Yang
authors.initials: Y
authors.lastname: Huang
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Bando
authors.forename: Chengchun
authors.initials: C
authors.lastname: Tang
authors.forename: Takashi
authors.initials: T
authors.lastname: Sekiguchi
authors.forename: Dmitri
authors.initials: D
authors.lastname: Golberg
mesh_terms: D001896:Boron Compounds / Q000737:chemistry; D017610:Calcium Compounds / Q000737:chemistry*; D005063:Europium / Q000737:chemistry*; D053770:Nanowires / Q000737:chemistry* / Q000648:ultrastructure; D013050:Spectrometry, Fluorescence; D013440:Sulfides / Q000737:chemistry*
chemical_list: D001896:Boron Compounds; D017610:Calcium Compounds; D013440:Sulfides; C033907:calcium sulfide; C017282:boron nitride; D005063:Europium