▎ 摘　　要

NOVELTY - The method involves forming a transfer stamp (14) comprising a nano-film layer on a transparent polymeric substrate (16), where the transparent polymeric substrate comprises an indirect adhesion layer adhered to a nano-film. The nano-film layer of the transfer stamp is applied to a surface of a target substrate, where the nano-film layer is fixed between the indirect adhesion layer and the target substrate and the target substrate is a device selected from an organic, perovskite or quantum-dot solar cell and an LED. USE - Method for transferring a nano-film i.e. graphene, to fabricate a transparent electrode in an organic solar cell or an organic LED. ADVANTAGE - The method enables depositing a molybdenum trioxide hole transport layer onto PDTP:PCBM film appeared to enhance optical transmittance even stand-alone molybdenum trioxide films are deposited on glass or PEN to reduce transmittance. The method ensures that graphene-based devices on flexible substrates are robust and withstand bending without degradations in performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a device for transferring a nano-film. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a nano-film. Binding layer (10) Transfer membrane (12) Transfer stamp (14) Transparent polymeric substrate (16) Graphene (18)