▎ 摘　　要

NOVELTY - The method involves providing a sheet (108) including a layer of graphene portion and a transition metal substrate portion. The layer of graphene portion is located on the transition metal substrate portion. The layer of graphene portion is coupled to a target substrate (106). The transition metal substrate portion of sheet is removed from the layer of graphene portion by chemical or electrochemical etching. The layer of graphene is conformed to the target substrate to form a graphene on target substrate assembly by applying hydrostatic pressure. USE - Method for transferring layer of graphene from transitional metal substrate onto target substrate. ADVANTAGE - The need for using intermediate polymer transfer film to transfer the layer of graphene from the transition metal substrate to the target substrate is eliminated. The process can be scaled and/or adapted to different sizes and shapes of the target substrate. The defects such as such as tears, folds, voids and contamination introduced into one-atom-thick graphene film can be avoided. DETAILED DESCRIPTION - The sheet and target substrate are placed in a porous fixture prior to removal of transition metal substrate. The removal of substrate is performed while the sheet and the target substrate are located in the porous fixture. The transition metal substrate is made of copper, nickel, iron, cobalt, platinum, iridium, and/or ruthenium. The target substrate is made of silicon dioxide based semiconductor, glass, quartz, rigid polymer material, and/or flexible polymer material. An INDEPENDENT CLAIM is included for apparatus for transferring layer of graphene from transitional metal substrate onto target substrate, which includes a backing plate (112) having a flat surface for supporting the target substrate. A retaining ring (114) is removably coupled to the backing plate, which is located in spaced alignment with the backing plate. A permeable fabric (104) is located within housing (102) adjacent to flat surface to pass etching solution to remove the transition metal substrate. The permeable fabric is not adhered to the layer of graphene under hydrostatic pressure. The retaining ring is coupled to the backing plate through fastener. The retaining ring and backing plate are biased together by biasing mechanisms. A sealing ring (118) is located between the retaining ring and the permeable fabric. DESCRIPTION OF DRAWING(S) - The drawing shows an exploded perspective view of the assembly for conforming layer of graphene to target substrate. Housing (102) Permeable fabric (104) Target substrate (106) Sheet (108) Backing plate (112) Retaining ring (114) Sealing ring (118)