Morphology and photoresponse of crystalline antimony film grown on mica by physical vapor deposition
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 micros...
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Main Authors: | , , , , , |
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Format: | Article |
Published: |
Walter de Gruyter GmbH
2016
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Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84992554675&doi=10.1515%2fmsp-2016-0084&partnerID=40&md5=93b420e3b9c7b2fcc040a8fcfce021df http://eprints.utp.edu.my/25779/ |
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Institution: | Universiti Teknologi Petronas |
Summary: | 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. |
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