Hybrid of Ag Nanowires and Doped Graphene for the Transparent Conductor with Enhanced Conductivity
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A hybrid transparent conducting films based on silver nanowires (Ag NWs) and doped graphene (GP) were prepared through dual co-doping method by applying p-/n- type dopants on top and bottom sides of GP. The dual-doping effect on the surface and electrical-optical properties of GP and Ag NW/GP hybrid films were systematically investigated through the combination study with various dopants (p/p, p/n, n/p, and n/n). We found that p/p-type dual-doped GP and its hybrid with Ag NWs appeared to be the most effective to enhance electrical-optical properties of GP and Ag NW/GP hybrid. In addition, the enhanced conductivity of p-type dual-doped GP allows a hybrid system to form co-percolating network in which Ag NWs can form a secondary conductive path at grain boundaries of polycrystalline GP.