Article 2023 · 32 atıf

Highly sensitive self-powered UV-visible photodetector based on ZrO2-RGO nanofibers/n-Si heterojunction

Yildirim, Fatma, Khalili, Saba, Orhan, Zeynep, Chenari, Hossein Mahmoudi, Aydogan, S.

Özet

Nanoscale microstructures such as nanofibers (NFs) have the potential to be widely used in optoelectronics as they minimize the interfacial effects. A low-cost and easily prepared the ZrO2-RGO NFs/n-Si heterojunction photodetector was fabricated and its photodetector performance were reported in the present work. The morphological, structural, and optical analyses of the ZrO2-RGO NFs were achieved by scanning electron microscopy (SEM), X-ray diffraction (XRD), and UV-Vis diffuse reflectance spectroscopy (DRS), respectively. The device yields a rectification ratio of 37384. It was observed that the ZrO2-RGO NFs/n-Si photodetector fabricated under the same conditions gave a high response to light in both the visible and UV spectral regions in addition to the self-powered mode. Compared to the reverse current measured in the dark, the ZrO2-RGO NFs/n-Si heterojunction gives quite high reverse current even in ambient light as high as an order of three, making it a candidate photodetector for low light intensities. The ON/OFF ratio reached up to 6.1 x 103 and 5.5 x 103 for 150 mW/cm2 for visible light and UV (365 nm), respectively (at -2.0 V).(c) 2022 Elsevier B.V. All rights reserved.

Anahtar Kelimeler

ZrO 2-RGO Nanofibers Self -powered photodetector Responsivity ON OFF ratio Detectivity SPECTRAL RESPONSE HIGH-DETECTIVITY ULTRAFAST DARK

WoS Kategorileri

Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering

Künye

Dergi: JOURNAL OF ALLOYS AND COMPOUNDS
Yıl: 2023
Cilt: 935
ISSN: 0925-8388
eISSN: 1873-4669
DOI: 10.1016/j.jallcom.2022.168054
WoS UID: WOS:000890184600002

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