title: Enhancement of field emission and photoluminescence properties of graphene-SnO2 composite nanostructures.
abstract: In this study, the SnO(2) nanostructures and graphene-SnO(2) (G-SnO(2)) composite nanostructures were prepared on n-Si (100) substrates by electrophoretic deposition and magnetron sputtering techniques. The field emission of SnO(2) nanostructures is improved largely by depositing graphene buffer layer, and the field emission of G-SnO(2) composite nanostructures can also further be improved by decreasing sputtering time of Sn nanoparticles to 5 min. The photoluminescence (PL) spectra of the SnO(2) nanostructures revealed multipeaks, which are consistent with previous reports except for a new peak at 422 nm. Intensity of six emission peaks increased after depositing graphene buffer layer. Our results indicated that graphene can also be used as buffer layer acting as interface modification to simultaneity improve the field emission and PL properties of SnO(2) nanostructures effectively.
authors.affiliation: State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China.
authors.forename: Jijun
authors.initials: J
authors.lastname: Ding
authors.forename: Xingbin
authors.initials: X
authors.lastname: Yan
authors.forename: Jun
authors.initials: J
authors.lastname: Li
authors.forename: Baoshou
authors.initials: B
authors.lastname: Shen
authors.forename: Juan
authors.initials: J
authors.lastname: Yang
authors.forename: Jiangtao
authors.initials: J
authors.lastname: Chen
authors.forename: Qunji
authors.initials: Q
authors.lastname: Xue