Flexible Field Emission of Nitrogen‐Doped Carbon Nanotubes/Reduced Graphene Hybrid Films

Abstract

The outstanding flexible field emission properties of carbon hybrid films made of vertically aligned N-doped carbon nanotubes grown on mechanically compliant reduced graphene films are demonstrated. The bottom-reduced graphene film substrate enables the conformal coating of the hybrid film on flexible device geometry and ensures robust mechanical and electrical contact even in a highly deformed state. The field emission properties are precisely examined in terms of the control of the bending radius, the N-doping level, and the length or wall-number of the carbon nanotubes and analyzed with electric field simulations. This high-performance flexible carbon field emitter is potentially useful for diverse, flexible field emission devices.

Mussel‐Inspired Block Copolymer Lithography for Low Surface Energy Materials of Teflon, Graphene, and Gold

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“…As a result, nitrogen-doped CNTs or CNFs recently have attracted greater attention. Owing to the highly ordered structure of CNTs and CNFs, the most common method for nitrogen inclusion is the use of in situ nitrogen-doping approach (Lee et al, 2011;O'Byrne et al, 2011;Lepró et al, 2012).…”