title: Mild benzene-thermal route to GaP nanorods and nanospheres.
abstract: GaP nanorods and nanospheres were synthesized from a mild benzene-thermal route at 240 and 300 degrees C, respectively, using Na, P, and GaCl(3) as the starting materials. The structure of the products was identified as zinc blende phase by X-ray powder diffraction (XRD). Transmission electron microscopy (TEM) images showed that, when the reaction temperature was 240 degrees C, the products were nanorods with widths of 20-40 nm and lengths of 200-500 nm and nanospheres with diameters of 20-40 nm. However, when the reaction temperature was increased to 300 degrees C, the products were only nanospheres, and the diameters increased to 40-60 nm. The reaction proceeded through a metallic gallium intermediate, and a solution-liquid-solid (SLS) mechanism was proposed for the one-dimensional growth. The products were also investigated by UV-vis absorption and X-ray photoelectron spectroscopy.
authors.affiliation: Structure Research Laboratory, University of Science and Technology of China, Hefei, Anhui 230026, PRC.
authors.forename: Shanmin
authors.initials: S
authors.lastname: Gao
authors.forename: Yi
authors.initials: Y
authors.lastname: Xie
authors.forename: Jun
authors.initials: J
authors.lastname: Lu
authors.forename: Guoan
authors.initials: G
authors.lastname: Du
authors.forename: Wei
authors.initials: W
authors.lastname: He
authors.forename: Deliang
authors.initials: D
authors.lastname: Cui
authors.forename: Baibiao
authors.initials: B
authors.lastname: Huang
authors.forename: Minhua
authors.initials: M
authors.lastname: Jiang