▎ 摘　　要

Chemical vapour deposited graphene on Cu foil should be transferred to target dielectric substrate before being used in various applications. This route often involves preparation of a supporting material on graphene before the transfer process and removal of the material after graphene is transferred to a foreign substrate. Herein, we demonstrate a simple process combining graphene transfer and subsequent graphene-based sensor preparation in one route. By applying a thin flexible polyethylene (PE) film onto graphene and subsequently chemical etching Cu foil, this process enables the high-quality transfer of graphene on PE film. A flexible strain sensor prepared from the as-transferred graphene/PE film shows good detection sensitivity. Therefore, this process could greatly reduce the cost of transfer and device fabrication for mass production.