Glucose-Assisted Bubbling Transfer of Wafer-Scale Graphene

Research on graphene transfer technology is very important for the practical applications of graphene films. Among the graphene transfer schemes, the electrochemical bubbling process is an efficient and scalable method. However, since this method involves the rapid exfoliation of graphene, ensuring the quality of the bubbling-transfer graphene remains a challenge. Herein, glucose is introduced into the bubbling solution, and its intercalation effect between graphene and the metal substrate weakens the coupling between them, making graphene easier to exfoliate. Graphene grown on a variety of different substrates is transferred by the glucose-assisted electrochemical bubbling method. The single-layer and bilayer graphene transferred by glucose assistance show excellent electrical properties, further demonstrating the high quality of graphene. This work provides a universal method for the transfer of graphene, which is expected to become the basis for its future applications.