Rivet Graphene

Abstract

Large-area graphene has emerged as a promising material for use in flexible and transparent electronics due to its flexibility and optical and electronic properties. The anchoring of transition metal nanoparticles on large-area single-layer graphene is still a challenge. Here, we report an in situ preparation of carbon nano-onion-encapsulated Fe nanoparticles on rebar graphene, which we term rivet graphene. The hybrid film, which allows for polymer-free transfer and is strong enough to float on water with no added supports, exhibits high optical transparency, excellent electric conductivity, and good hole/electron mobility under certain tensile/compressive strains. The results of contact resistance and transfer length indicate that the current in the rivet graphene transistor does not just flow at the contact edge. Carbon nano-onions encapsulating Fe nanoparticles on the surface enhance the injection of charge between rivet graphene and the metal electrode. The anchoring of Fe nanoparticles encapsulated by carbon nano-onions on rebar graphene will provide additional avenues for applications of nanocarbon-based films in transparent and flexible electronics.

Synthesis, structure and applications of graphene-based 2D heterostructures

“…A further reinforcement can be attained by performing a second CVD with Fe particles deposited on the rebar structure. 206 Rebar graphene with h-BN nanotubes have been also demonstrated, showing mechanical properties similar to those of the CNT rebar.…”

Hybrid silicon–carbon nanostructures for broadband optical absorption

“…On the other hand, using carbon cages as costing materials to protect clusters against external interference has been attracted a lot of attentions. [36][37][38][39][40][41] In particular, carbon cage encapsulating Si, Co, and Fe nanoparticles have been successfully synthesized by experiments, recently. [36][37][38][39][40] It has been shown that the carbon cage encapsulation not only acts as protective layer against cluster oxidation, the hybrid nanostructures formed by the carbon cage and the encapsulated nanoparticles can also exhibit interesting electronic structures and desirable properties for magnetic and battery applications.…”

“…[36][37][38][39][40][41] In particular, carbon cage encapsulating Si, Co, and Fe nanoparticles have been successfully synthesized by experiments, recently. [36][37][38][39][40] It has been shown that the carbon cage encapsulation not only acts as protective layer against cluster oxidation, the hybrid nanostructures formed by the carbon cage and the encapsulated nanoparticles can also exhibit interesting electronic structures and desirable properties for magnetic and battery applications. [36][37][38][39][40][41] In the present paper, we propose a new design of Si-based nanostructures, i.e., carbon fullerene coated Si nanoclusters for improving the light absorption efficiency.…”

“…[36][37][38][39][40] It has been shown that the carbon cage encapsulation not only acts as protective layer against cluster oxidation, the hybrid nanostructures formed by the carbon cage and the encapsulated nanoparticles can also exhibit interesting electronic structures and desirable properties for magnetic and battery applications. [36][37][38][39][40][41] In the present paper, we propose a new design of Si-based nanostructures, i.e., carbon fullerene coated Si nanoclusters for improving the light absorption efficiency. We show that the hybrid silicon-carbon nanostructures provide an interesting system to study the interplay between the electronic structures of Si clusters and carbon fullerenes and the unique optical properties arisen from such interplay.…”

Graphene Foam Chemical Sensor System Based on Principal Component Analysis and Backpropagation Neural Network

“…Graphene was a kind of two-dimensional material which has been extensively investigated due to its outstanding performance in terms of high surface-to-volume ratio and outstanding electrical, optical, and mechanical properties [1][2][3][4]. A number of reports were focused on chemical sensing systems based on graphene materials such as chemiresistors [5,6], field-effect transistors [7,8], and other chemical sensors [9,10].…”