• 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.

      Triangular metallic gratings for large absorption enhancement in thin film Si solar cells

      Thumbnail
      View / Download
      1.6 Mb
      Author
      Battal, E.
      Yogurt, T.A.
      Aygun L.E.
      Okyay, Ali Kemal
      Date
      2012
      Source Title
      Optics Express
      Print ISSN
      10944087
      Publisher
      Optical Society of American (OSA)
      Volume
      20
      Issue
      9
      Pages
      9458 - 9464
      Language
      English
      Type
      Article
      Item Usage Stats
      158
      views
      104
      downloads
      Abstract
      We estimate high optical absorption in silicon thin film photovoltaic devices using triangular corrugations on the back metallic contact. We computationally show 21.9% overall absorptivity in a 100-nmthick silicon layer, exceeding any reported absorptivity using single layer gratings placed on the top or the bottom, considering both transverse electric and transverse magnetic polarizations and a wide spectral range (280 - 1100 nm). We also show that the overall absorptivity of the proposed scheme is relatively insensitive to light polarization and the angle of incidence. We also discuss the implications of potential fabrication process variations on such a device. © 2012 Optical Society of America.
      Keywords
      Optical constants
      Optics
      Absorption enhancement
      Absorptivities
      Angle of Incidence
      Fabrication process
      Metallic contacts
      Metallic gratings
      Si solar cells
      Silicon layer
      Silicon thin film
      Single layer
      Transverse electrics
      Transverse magnetic polarization
      Wide spectral range
      Thin films
      metal
      silicon
      absorption
      article
      artificial membrane
      chemistry
      equipment
      equipment design
      instrumentation
      power supply
      radiation scattering
      refractometry
      solar energy
      Absorption
      Electric Power Supplies
      Equipment Design
      Equipment Failure Analysis
      Membranes, Artificial
      Metals
      Refractometry
      Scattering, Radiation
      Silicon
      Solar Energy
      Permalink
      http://hdl.handle.net/11693/21500
      Published Version (Please cite this version)
      http://dx.doi.org/10.1364/OE.20.009458
      Collections
      • Department of Electrical and Electronics Engineering 3605
      • Institute of Materials Science and Nanotechnology (UNAM) 1845
      Show full item record

      Related items

      Showing items related by title, author, creator and subject.

      • Thumbnail

        Compound Hertzian chain model for copper-carbon nanocomposites' absorption spectrum 

        Kokabi, A.; Hosseini, M.; Saeedi, S.; Moftakharzadeh, A.; Vesaghi, M.A.; Fardmanesh, M. (2011)
        The infrared range optical absorption mechanism of carbon-copper composite thin layer coated on the diamond-like carbon buffer layer has been investigated. By consideration of weak interactions between copper nanoparticles ...
      • Thumbnail

        ZnO based optical modulator in the visible wavelengths 

        Okyay, Ali Kemal; Aygun, Levent E.; Oruç, Feyza B. (SPIE, 2013)
        In order to demonstrate tunable absorption characteristics of ZnO, photodetection properties of ZnO based thin-film transistors are investigated. By controlling the occupancy of the trap states, the optical absorption ...
      • Thumbnail

        Large area compatible broadband superabsorber surfaces in the VIS-NIR spectrum utilizing metal-insulator-metal stack and plasmonic nanoparticles 

        Dereshgi, S. A.; Okyay, Ali Kemal (OSA - The Optical Society, 2016)
        Plasmonically enhanced absorbing structures have been emerging as strong candidates for photovoltaic (PV) devices. We investigate metal-insulator-metal (MIM) structures that are suitable for tuning spectral absorption ...

      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
      © Bilkent University - Library IT

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