title: Structural properties of nanometre-sized ZnO crystals doped with Co.
abstract: Nanometre-sized ZnO crystals doped with Co were synthesized by a co-precipitation method combined with a thermal treatment. By changing the reaction temperature, we can control the crystallite size from roughly 10 nm particles to 20 nm × 200 nm nm rods grown along the hexagonal c-direction. X-ray diffraction and Raman scattering showed growth of high-quality wurtzite ZnO crystals incorporating Co systematically in the ZnO host lattice in the tested range of [Co]<3.0 mol%. Electronic transitions of Co in the oxygen tetrahedron were also observed in optical absorption, giving supporting evidence for systematic substitution of Co into the Zn site.
authors.affiliation: Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Hasuike
authors.forename: R
authors.initials: R
authors.lastname: Deguchi
authors.forename: H
authors.initials: H
authors.lastname: Katoh
authors.forename: K
authors.initials: K
authors.lastname: Kisoda
authors.forename: K
authors.initials: K
authors.lastname: Nishio
authors.forename: T
authors.initials: T
authors.lastname: Isshiki
authors.forename: H
authors.initials: H
authors.lastname: Harima