Two-dimensional single-layer dendritic crystal graphene film and preparation method thereof

The invention belongs to the technical field of graphene film preparation, and discloses a two-dimensional single-layer dendritic crystal graphene film and a preparation method thereof. According to the method, a chemical vapor deposition two-step growth method is adopted, that is, hydrogen continues to be introduced after a graphene continuous single-layer film is synthesized, and the high-quality large-area continuous single-layer graphene dendritic crystal film is obtained through the hydrogen etching effect. A Raman spectrogram proves that the graphene is a single layer, the 2D peak intensity of the graphene is greater than the G peak, and the graphene has a perfect single Lorentz peak pattern. The obtained two-dimensional single-layer dendritic crystal graphene film is good in stability and continuity, has excellent sensing performance and catalytic performance, and has important application prospects in the fields of sensing and photocatalysis. 本发明属于石墨烯薄膜制备技术领域，本发明公开了一种二维单层枝晶石墨烯薄膜及其制备方法。本发明采用化学气相沉积两步生长法