Self‐Assembly Growth of Twisted Bilayer Graphene on Liquid Cu

Abstract Twisted bilayer graphene (tBLG) possesses various novel physical properties. Most of tBLG are fabricated by using artificial methods stacking or folding single‐layer graphene. Chemical vapor deposition (CVD) has been verified that it holds great potential for preparation large‐size high‐quality Therefore, is significant preparing in situ CVD technology. In this work, a approach developed to directly prepare tBLGs on liquid Cu substrate. When the growth temperature exceeds certain critical value, state aligned domains grown will be broken. Then, with twisted double‐layer regions prepared rotating and intercalating between domains. Experimental observations suggest phase substrate gas flow play crucial role formation tBLGs. These results demonstrate an ideal full range angles studying mechanism layer‐stacked materials.