Synthesis, structure and optimized field emission properties of highly oriented ZnO/Pt core–shell nanorods on a Zn substrate

Abstract

<p>The current density of as-fabricated Pt15/ZnO NR emitters was about 1900 times that of the bare ZnO emitters.</p>

Enhanced field emission of quasi-aligned 3C-SiC nanoarrays alloyed with tiny Co nano-tips

“…This indicates that, by modifying the electronic structure through doping or even metal decorating, it might be possible to further improve the emission characteristics of field emitters. 10,18 Additionally, two alternative approaches have been proposed and successfully exploited by reducing the radius of the nanowire tips and modification of the emitters with metal nanoparticles or other nanostructures (e.g., Cu, Au, In, Ag and Pt nanoparticles), [19][20][21][22] to enhance the field emission performance of nanostructures by increasing the density of the emission sites and reduce the field enhancement factor (β) of the emitters. For instance, Chen et al reported that Au nanoparticle-decorated graphene emitters exhibited exciting excellent FE properties with ultralow E to and E thr (defined as the electric field required to produce a current density of 1 mA cm −2 ) of 2.8 and 4.3 V μ m −1 , respectively.…”