▎ 摘　　要

NOVELTY - Method for improving electrical characteristics of graphene device involves providing the graphene device with ferroelectric film on substrate having graphene layer and applying specified voltage on the graphene device. USE - The method is useful for improving electrical characteristics of graphene device (claimed). ADVANTAGE - The method enables the device to utilize transparent electrode as it has reduced surface resistance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for grapheme device having improved electrical characteristics, which is obtained by the above-mentioned method.