Morphology and photoresponse of crystalline antimony film grown on mica by physical vapor deposition

Shafa, M. and Wang, Z. and Naz, M.Y. and Akbar, S. and Farooq, M.U. and Ghaffar, A. (2016) Morphology and photoresponse of crystalline antimony film grown on mica by physical vapor deposition. Materials Science- Poland, 34 (3). pp. 591-596.

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Antimony is a promising material for the fabrication of photodetectors. This study deals with the growth of a photosensitive thin film by the physical vapor deposition (PVD) of antimony onto mica surface in a furnace tube. The geometry of the grown structures was studied via scanning electron microscopy (SEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX) and elemental diffraction analysis. XRD peaks of the antimony film grown on mica mostly matched with JCPDF Card. The formation of rhombohedral crystal structures in the film was further confirmed by SEM micrographs and chemical composition analysis. The Hall measurements revealed good electrical conductivity of the film with bulk carrier concentration of the order of 1022 Ω·cm-3 and mobility of 9.034 cm2/Vs. The grown film was successfully tested for radiation detection. The photoresponse of the film was evaluated using its current-voltage characteristics. These investigations revealed that the photosensitivity of the antimony film was 20 times higher than that of crystalline germanium. © 2016 Wroclaw university of Technology.

Item Type:Article
Impact Factor:cited By 0
Uncontrolled Keywords:Carrier concentration; Chemical analysis; Crystalline materials; Current voltage characteristics; Deposition; Energy dispersive spectroscopy; Film growth; Hall mobility; Light sensitive materials; Mica; Photodetectors; Photons; Photosensitivity; Physical vapor deposition; Scanning electron microscopy; Silicate minerals; Thin films; X ray diffraction; X ray spectroscopy, Chemical composition analysis; Crystalline germanium; Diffraction analysis; Electrical conductivity; Energy dispersive X ray spectroscopy; Radiation detection; Rhombohedral crystals; Vapor-solid growth, Vapor deposition
ID Code:25779
Deposited By: Ms Sharifah Fahimah Saiyed Yeop
Deposited On:27 Aug 2021 13:05
Last Modified:27 Aug 2021 13:05

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