▎ 摘　　要

NOVELTY - Paper-based ethanol gas sensor includes a transparent paper base layer, a conductive layer, and the conductive layer is arranged on one surface of the transparent paper base layer. A gas-sensitive layer being arranged on the surface of the conductive layer away from the transparent paper base layer. The gas-sensitive sensing layer is a composite layer of nano-zinc oxide and graphene. USE - Paper-based ethanol gas sensor for detecting ethanol gas (Claimed). ADVANTAGE - The paper-based ethanol gas sensor has high sensitivity and short response/recovery time, and is prepared by simple process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation method of a paper-based ethanol gas sensor, which involves screen-printing the silver paste on a transparent paper base to form interdigital electrodes, solidifying, and forming a conductive layer, and screen-printing the nano-zinc oxide and graphene composite material on the conductive layer to form a gas-sensitive sensing layer to obtain the paper-based ethanol gas sensor.