title: Graphene plasmon enhanced photoluminescence in ZnO microwires.
abstract: We report the temperature dependent photoluminescence (PL) properties of monolayer graphene-Au-nanoparticle-ZnO (GAZ) microwire hybrid structures. By comparing with the bare ZnO wire without coverage of graphene, a three times enhancement of PL was found in the GAZ hybrid structures. The enhancement is attributed to the coupling between the PL photons from ZnO and the graphene surface plasmons with ~1-2 nm Au as a corrugated surface. Our results may be valuable for designing graphene-ZnO hybrid based optical and photoelectrical devices.
authors.affiliation: State Key Laboratory for Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, PR China.
authors.forename: Ren
authors.initials: R
authors.lastname: Liu
authors.forename: Xue-Wen
authors.initials: XW
authors.lastname: Fu
authors.forename: Jie
authors.initials: J
authors.lastname: Meng
authors.forename: Ya-Qing
authors.initials: YQ
authors.lastname: Bie
authors.forename: Da-Peng
authors.initials: DP
authors.lastname: Yu
authors.forename: Zhi-Min
authors.initials: ZM
authors.lastname: Liao
mesh_terms: D006046:Gold / Q000737:chemistry; D006108:Graphite / Q000737:chemistry*; D008163:Luminescent Measurements; D053768:Metal Nanoparticles / Q000737:chemistry; D020349:Surface Plasmon Resonance; D013696:Temperature; D015034:Zinc Oxide / Q000737:chemistry*
chemical_list: D006046:Gold; D006108:Graphite; D015034:Zinc Oxide