Graphene transfer device

Abstract

The invention relates to a graphene transfer device. The graphene transfer device comprises a feeding device, a transfer pressure applying device, a finished product recovery device and a platform base plate. The feeding device, the transfer pressure applying device, and the finished product recovery device are sequentially connected and are connected with the platform base plate through a feeding device connecting base, a platform side wall and a finished product recovery device connecting base respectively; the transfer pressure applying device comprises a pressure-bearing feeding power roller, a driving pressure applying roller, two roller supporting assemblies, two pressure applying assemblies and a feeding power providing assembly. The roller supporting assemblies are used for supporting the pressure-bearing feeding power roller and the driving pressure applying roller, the pressure applying assemblies are used for applying pressure to the driving pressure applying roller, and the feeding power providing assembly is used for providing power for pressure-bearing feeding power roller. The graphene transfer device is compact and simple in structure, can precisely control the pressure value and the parallelism between the upper roller and the lower roller, improves the precision and efficiency of the transfer, reduces device costs and provides an industrialized thought for large-scale application of grapheme.

Description

technical field [0001] The invention relates to a graphene transfer device. Background technique [0002] Due to its high performance, low cost and other characteristics, graphene has a very broad application prospect, which has attracted extensive attention of domestic and foreign scientific researchers. Due to the constraints of the current preparation process, it is difficult to grow single-layer and large-area graphene at high speed and low defect on substrates other than copper. However, copper, as a conductive and non-transparent substrate, cannot be used in final applications. Therefore, how to transfer the graphene grown on the copper substrate film to other flexible, non-conductive and highly elastic substrate films has become a bottleneck restricting the wide application of graphene, which needs to be solved urgently key technologies. [0003] Roll-to-roll rolling technology, due to its advantages of low cost, high efficiency, high speed, and good continuity, has...

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Problems solved by technology

[0004] Invention patent CN102656016A discloses a graphene roll-to-roll transfer device, which transfers the graphene film grown on the metal substrate to other flexible substrates through a roller system. However, in the prior art, since graphene requires 1000 ° C Growth under vacuum and high temperature conditions is very close to the melting point of copper, and graphene films cannot be obtained by continuous growth on rolled copper substrates, so what is often obtained is a piece of scattered copper films with graphene growing on them. Moreover, the growth of graphene takes tens of minutes, which is a slow process, and it only takes tens of seconds to transfer graphene from copper substrate to other flexible substrates (PET), which is a fast process. The device will The growth is coupled with the transfer, which is not conducive to improving production efficiency, and is not conducive to the transfer of block products; during the transfer process, the pressure field and parallelism between the transfer rollers cannot be adjusted, and the uniformity of the transfer cannot be guaranteed.

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