The growth of weakly coupled graphene sheets from silicon carbide powder

Abstract

Abstract.A simple method for production of weakly coupled graphene layers by hightemperature sublimation of polycrystalline SiC is presented. The method allows manufacturing carbon-based composite with a high content of weakly coupled graphene layers in large-scale production. The study of the obtained carbon-based material by means of scanning electron microscopy, Raman spectroscopy and atomic force microscopy detected graphene plates with lateral size of up to tens of micrometers. The obtained graphene sheets are shown to have very high crystal perfection, low concentration of defects and weak interlayer coupling, which depends on the growth conditions. The proposed method of producing graphene-based composites is supposed to be very promising due to its relative simplicity and high output.

Review of the synthesis, transfer, characterization and growth mechanisms of single and multilayer graphene

“…76 A single-crystal SiC substrate was heated up to a high temperature of more than 1000 C in an ultrahigh vacuum chamber to prompt the sublimation of silicon (Si) atoms on the SiC surface. Following the sublimation of Si atoms, the subsequent graphitization of the surplus carbon atoms could occur on the surface of the SiC substrate, 77 and thus, graphene lms were formed. Yu and colleagues 78 developed a novel way to produce high-quality epitaxial graphene sheets, named the 'face-to-face' method.…”

High-Resolution Laser-Induced Graphene from Photoresist

“…1,2 Recent advances in graphene production enable bulk manufacturing of both graphene 3−5 and graphene oxide. 6,7 Other strategies, including chemical vapor deposition, 8,9 epitaxial growth on SiC, 10,11 and photothermal reduction of graphene oxide, 12−14 enable the synthesis of distinct graphene patterns for functional devices. The properties of graphene can intrinsically depend on how it is synthesized.…”

“…Graphene, a two-dimensional carbon nanomaterial, is useful for many applications that leverage its extraordinary mechanical, chemical, electrical, optical, and thermal properties. , Recent advances in graphene production enable bulk manufacturing of both graphene − and graphene oxide. , Other strategies, including chemical vapor deposition, , epitaxial growth on SiC, , and photothermal reduction of graphene oxide, − enable the synthesis of distinct graphene patterns for functional devices. The properties of graphene can intrinsically depend on how it is synthesized.…”