• About
  • Policies
  • What is openaccess
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Engineering
      • Department of Electrical and Electronics Engineering
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Faculty of Engineering
      • Department of Electrical and Electronics Engineering
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      UV/vis range photodetectors based on thin film ALD grown ZnO/Si heterojunction diodes

      Thumbnail
      View / Download
      860.8 Kb
      Author
      Alkis, S.
      Tekcan, B.
      Nayfeh, A.
      Okyay, Ali Kemal
      Date
      2013
      Source Title
      Journal of Optics (United Kingdom)
      Print ISSN
      2040-8978
      Publisher
      IOP Publishing
      Volume
      15
      Issue
      10
      Language
      English
      Type
      Article
      Item Usage Stats
      142
      views
      119
      downloads
      Abstract
      We present ultraviolet-visible (UV/vis) range photodetectors (PDs) based on thin film ZnO (n)/Si (p) heterojunction diodes. ZnO films are grown by the atomic layer deposition (ALD) technique at growth temperatures of 80, 150, 200 and 250 ° C. The fabricated ZnO (n)/Si (p) photodetectors (ZnO-Si-PDs) show good electrical rectification characteristics with ON/OFF ratios reaching up to 103. Under UV (350 nm wavelength) and visible (475 nm wavelength) light illumination, the ZnO-Si-PDs give photoresponsivity values of 30-37 mA W-1 and 74-80 mA W-1 at 0.5 V reverse bias, respectively. Photoluminescence (PL) spectra of ALD grown ZnO thin films are used to support the results.
      Keywords
      Atomic layer deposition
      Photodiodes
      Heterojunction diodes
      Light illumination
      On/off ratio
      Photodetectors (PDs)
      Photoluminescence spectrum
      Photoresponsivity
      ZnO
      ZnO thin film
      Deposition
      Electric rectifiers
      Heterojunctions
      Metallic films
      Permalink
      http://hdl.handle.net/11693/20799
      Published Version (Please cite this version)
      http://dx.doi.org/10.1088/2040-8978/15/10/105002
      Collections
      • Department of Electrical and Electronics Engineering 3597
      • Institute of Materials Science and Nanotechnology (UNAM) 1831
      Show full item record

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartments

      My Account

      Login

      Statistics

      View Usage StatisticsView Google Analytics Statistics

      Bilkent University

      If you have trouble accessing this page and need to request an alternate format, contact the site administrator. Phone: (312) 290 1771
      Copyright © Bilkent University - Library IT

      Contact Us | Send Feedback | Off-Campus Access | Admin | Privacy