Abstract

Since the discovery of their exotic properties, graphene and graphene-related materials (GRMs) have received an extraordinary amount of interest from both academia and industry [1]. However, the production of GRMs at large volume, with consistent quality, constitutes a challenge that has hindered their practical applications. In this study, a versatile laser-based method is adopted for the single-step, scalable production of graphene flakes and graphene-nanohybrids, at ambient conditions, avoiding any wet-chemistry pre-treatment or post-processing. A thin film of few-layer turbostratic graphene flakes doped with F atoms (~ 3.3 at. %) is deposited on the out cladding surface of an tilted optical fiber Bragg grating (TOFBG) and the response of the sensor in the detection of NH₄OH vapors is examined.

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