▎ 摘　　要

Theartificial olfaction units (or e-noses) capable ofroom-temperatureoperation are highly demanded to meet the requests of society in numerousvital applications and developing Internet-of-Things. Derivatized2D crystals are considered as sensing elements of choice in this regard,unlocking the potential of the advanced e-nose technologies limitedby the current semiconductor technologies. Herein, we consider fabricationand gas-sensing properties of On-chip multisensor arrays based ona hole-matrixed carbonylated (C-ny) graphene film with a graduallychanged thickness and concentration of ketone groups of up to 12.5at.%. The enhanced chemiresistive response of C-ny graphene towardmethanol and ethanol, of hundred ppm concentration when mixing withair to match permissible exposure OSHA limits, at room-temperatureoperation is signified. Following thorough characterization via core-leveltechniques and density functional theory, the predominant role ofthe C-ny graphene-perforated structure and abundance of ketone groupsin advancing the chemiresistive effect is established. Advancing practiceapplications, selective discrimination of the studied alcohols isapproached by linear discriminant analysis employing a multisensorarray's vector signal, and the fabricated chip's long-termperformance is shown.