Frame assisted H2O electrolysis induced H2 bubbling transfer of large area graphene grown by chemical vapor deposition on Cu

An improved technique for transferring large area graphene grown by chemical vapor deposition on copper is presented. This method utilizes mechanical separation of the graphene/copper interface through H2 bubbles generated during H2O electrolysis, effectively completing the transfer in a matter of seconds while maintaining the integrity of the copper cathode. A semi-rigid plastic frame combined with a thin polymer layer atop the graphene simplifies handling and minimizes the occurrence of wrinkles and holes in the graphene material. The performance of the transferred graphene is characterized through various optical and electrical assessments. The results indicate that the quality of the graphene achieved through this novel transfer technique surpasses that of conventional methods, providing a more efficient way to handle and utilize large-area graphene in various applications.