• About
  • Policies
  • What is open access
  • Library
  • Contact
Advanced search
      View Item 
      •   BUIR Home
      • Scholarly Publications
      • Institute of Materials Science and Nanotechnology (UNAM)
      • View Item
      •   BUIR Home
      • Scholarly Publications
      • Institute of Materials Science and Nanotechnology (UNAM)
      • View Item
      JavaScript is disabled for your browser. Some features of this site may not work without it.

      A plasmonic enhanced photodetector based on silicon nanocrystals obtained through laser ablation

      Thumbnail
      View / Download
      734.0 Kb
      Author(s)
      Alkis, S.
      Oruç, F. B.
      Ortaç, B.
      Koşger, A. C.
      Okyay, Ali Kemal
      Date
      2012-10-18
      Source Title
      Journal of Optics (United Kingdom)
      Print ISSN
      2040-8978
      Publisher
      Institute of Physics Publishing
      Volume
      14
      Issue
      12
      Pages
      125001-1 - 125001-5
      Language
      English
      Type
      Article
      Item Usage Stats
      124
      views
      93
      downloads
      Abstract
      We present a proof-of-concept photodetector which is sensitive in the visible spectrum. Silicon nanocrystals (Si-NCs) obtained by laser ablation are used as the active absorption region. Si-NC films are formed from a polymeric dispersion. The films are sandwiched between thin insulating films to reduce the electrical leakage current. Furthermore, Ag nanoparticles are integrated with the photodetector to enhance the visible response using plasmonic effects. The measured photocurrent is resonantly enhanced, which is explained in terms of enhanced local fields caused by localized plasmons. The UV-vis spectrum of Ag nanoparticles is also measured to verify the resonance.
      Keywords
      Laser ablation
      Photodetector
      Semiconductor nanocrystals
      Thin film
      Active-absorption
      Ag nanoparticle
      Electrical leakage
      Enhanced local fields
      Plasmonic
      Polymeric dispersions
      Proof of concept
      Semiconductor nanocrystals
      Silicon nanocrystals
      Thin insulating film
      UV-Vis spectrum
      Visible spectra
      Laser ablation
      Lasers
      Nanoparticles
      Photodetectors
      Photons
      Plasmons
      Polymeric films
      Silicon
      Thin films
      Silver
      Permalink
      http://hdl.handle.net/11693/21209
      Published Version (Please cite this version)
      http://dx.doi.org/10.1088/2040-8978/14/12/125001
      Collections
      • Department of Electrical and Electronics Engineering 3702
      • Institute of Materials Science and Nanotechnology (UNAM) 1930
      Show full item record

      Browse

      All of BUIRCommunities & CollectionsTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartmentsThis CollectionTitlesAuthorsAdvisorsBy Issue DateKeywordsTypeDepartments

      My Account

      LoginRegister

      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
      © Bilkent University - Library IT

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