title: Plasmonic graphene transparent conductors.
abstract: Plasmonic graphene is fabricated using thermally assisted self-assembly of silver nanoparticles on graphene. The localized surface-plasmonic effect is demonstrated with the resonance frequency shifting from 446 to 495 nm when the lateral dimension of the Ag nanoparticles increases from about 50 to 150 nm. Finite-difference time-domain simulations are employed to confirm the experimentally observed light-scattering enhancement in the solar spectrum in plasmonic graphene and the decrease of both the plasmonic resonance frequency and amplitude with increasing graphene thickness. In addition, plasmonic graphene shows much-improved electrical conductance by a factor of 2-4 as compared to the original graphene, making the plasmonic graphene a promising advanced transparent conductor with enhanced light scattering for thin-film optoelectronic devices.
authors.affiliation: Department of Physics & Astronomy, University of Kansas, Lawrence, KS 66045, USA. xgw@ku.edu
authors.forename: Guowei
authors.initials: G
authors.lastname: Xu
authors.forename: Jianwei
authors.initials: J
authors.lastname: Liu
authors.forename: Qian
authors.initials: Q
authors.lastname: Wang
authors.forename: Rongqing
authors.initials: R
authors.lastname: Hui
authors.forename: Zhijun
authors.initials: Z
authors.lastname: Chen
authors.forename: Victor A
authors.initials: VA
authors.lastname: Maroni
authors.forename: Judy
authors.initials: J
authors.lastname: Wu
mesh_terms: D004553:Electric Conductivity; D006108:Graphite / Q000737:chemistry*; D053768:Metal Nanoparticles / Q000737:chemistry; D036103:Nanotechnology / Q000379:methods*; D012834:Silver / Q000737:chemistry; D013997:Time Factors; D014835:Volatilization
chemical_list: D012834:Silver; D006108:Graphite