Reel-to-reel graphene preparation apparatus

Abstract

The invention discloses a reel-to-reel graphene preparation apparatus which comprises a closed vacuum chamber, wherein a roll system for driving a graphene growing foil belt to move is arranged in the vacuum chamber; the roll system comprises a driving roll for guiding the graphene growing foil belt, a growing roll for growing graphene on the graphene growing foil belt and a winding roll for winding the graphene growing foil belt after the graphene preparation is finished; a heating device for heating the graphene growing foil belt, corresponding to the growing roll, is arranged in the vacuum chamber; a quick cooling device for cooling the graphene growing foil belt on which the graphene is grown is arranged behind the growing roll along the moving direction of the graphene growing foil belt; a gas path system for introducing gas required for graphene preparation is arranged in the vacuum chamber; and a vacuum pump set for vacuumizing the vacuum chamber is arranged outside the vacuum chamber. The reel-to-reel graphene preparation apparatus disclosed by the invention can realize the quick, continuous and large-scale industrial production of graphene.

Description

technical field [0001] The invention relates to a graphene production equipment, in particular to a roll-to-roll graphene production equipment capable of rapid, continuous and large-scale industrial production of graphene. Background technique [0002] Graphene is a two-dimensional crystal with a hexagonal honeycomb structure composed of carbon atoms based on sp2 hybridization and only one atomic layer thick. Although single-layer graphene was first obtained by mechanical exfoliation of graphite in experiments in 2004, it has aroused the interest of countless scientific researchers due to its unique properties, and has been extensively studied in the past few years. Andre Geim and Konstantin Novoselov also won the 2010 Nobel Prize in Physics for their pioneering work on graphene. [0003] Graphene is currently the thinnest and hardest nanomaterial in the world. It is almost completely transparent and only absorbs about 2.3% of light in the full band; its thermal conductivit...

AI Technical Summary

Problems solved by technology

After extensive research in recent years, several methods for preparing graphene have been developed, such as mechanical exfoliation, epitaxial growth, chemical reduction of graphite oxide, chemical vapor deposition (CVD), etc. Most of these graphene preparation methods can be Graphene samples for laboratory use are obtained under specific conditions, but there has been no breakthrough in the rapid preparation of large-area, high-quality graphene, which greatly limits the efficiency, output and cost of graphene preparation, hindering its further development. Industrialization development

[0005] Although South Korea has produced a 30-inch (diagonal about 76cm) graphene film with large-scale CVD equipment, due to equipment limitations, the preparation process still requires reloading the sample to prepare the next time after the preparation is completed. Achieve continuous and rapid preparation of large-area, high-quality graphene

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