Solution heteroepitaxial growth of dendritic SnO2/TiO_2 hybrid nanowires

摘要

We exploit a facile synthetic route to fabricate dendritic SnO_2/TiO_2 nanodentrites with a twofold point symmetry by a combination of vapor transport deposition method for the SnO_2 nanowire backbones and subsequent hydrothermal heteroepitaxial growth of TiO_2 nanorod branches. As a result of the good lattice matching and same rutile crystal structures between SnO_2 and TiO_2, an interface epitaxy is established accounting for the high symmetry. Proof-of-principle demonstration of the function in photoelectrochemical water splitting is presented.