Alper YanilmazMehmet FidanÖzhan ÜnverdiCem Celebi2025-10-06202210773118, 000369510003-69511077-311810.1063/5.0092833https://www.scopus.com/inward/record.uri?eid=2-s2.0-85133968525&doi=10.1063%2F5.0092833&partnerID=40&md5=1df5f477a769059fb4c052ba1ea21c92https://gcris.yasar.edu.tr/handle/123456789/8684We have fabricated a four-element graphene/silicon on insulator (SOI) based Schottky barrier photodiode array (PDA) and investigated its optoelectronic device performance. In our device design monolayer graphene is utilized as a common electrode on a lithographically defined linear array of n-type Si channels on a SOI substrate. As revealed by wavelength resolved photocurrent spectroscopy measurements each element in the PDA structure exhibited a maximum spectral responsivity of around 0.1 A/W under a self-powered operational mode. Time-dependent photocurrent spectroscopy measurements showed excellent photocurrent reversibility of the device with ∼1.36 and ∼1.27 μs rise time and fall time respectively. Each element in the array displayed an average specific detectivity of around 1.3 × 1012 Jones and a substantially small noise equivalent power of ∼0.14 pW/Hz-1/2. The study presented here is expected to offer exciting opportunities in terms of high value-added graphene/Si based PDA device applications such as multi-wavelength light measurement level metering high-speed photometry and position/motion detection. © 2022 Elsevier B.V. All rights reserved.EnglishPhotocurrents, Photodiodes, Schottky Barrier Diodes, Silicon, Silicon Compounds, Device Design, Device Performance, Linear-array, Optoelectronics Devices, Photocurrent Spectroscopy, Photodiode Arrays, Schottky-barrier Photodiode, Self-powered, Silicon On Insulator, Spectroscopy Measurements, GraphenePhotocurrents, Photodiodes, Schottky barrier diodes, Silicon, Silicon compounds, Device design, Device performance, Linear-array, Optoelectronics devices, Photocurrent spectroscopy, Photodiode arrays, Schottky-barrier photodiode, Self-powered, Silicon on insulator, Spectroscopy measurements, GrapheneArticle