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      Effect of gold nanoparticles size on light scattering for thin film amorphous-silicon solar cells

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      Author
      Islam, K.
      Alnuaimi, A.
      Battal, E.
      Okyay, Ali Kemal
      Nayfeh, A.
      Date
      2014-05
      Source Title
      Solar Energy
      Print ISSN
      0038-092X
      Publisher
      Elsevier Ltd
      Volume
      103
      Pages
      263 - 268
      Language
      English
      Type
      Article
      Item Usage Stats
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      Abstract
      In this work, the effect of gold (Au) nanoparticles on the performance of a-Si:H solar cells is investigated experimentally. The solar cell stack is grown on a highly doped p-type Si wafer and consists of 20nm heavily doped p-type a-Si, 500nm undoped a-Si, 20nm heavily doped n-type a-Si and finally 80nm Indium Tin Oxide (ITO) on the top. Au nanoparticles of 10, 20, 50, 80, 100, 200 and 400nm are spin coated on top of the ITO before metallization. The plasmonic effect of the Au nanoparticles allows for additional scattering at the surface thus reducing the overall reflectivity. The larger the nanoparticle size the more scattering is obtained and the median reflectivity drops from about 23% to 18%. The results show an increase in the short-circuit current density (Jsc) and efficiency with increasing nanoparticle size. The Jsc increases from 9.34 to 10.1mA/cm2. In addition, the efficiency increases from 4.28% to 5.01%. © 2014 Elsevier Ltd.
      Keywords
      Nanoparticles
      Photovoltaics
      Plasmonics
      Thin film
      Solar cells
      Amorphous Si
      Permalink
      http://hdl.handle.net/11693/12766
      Published Version (Please cite this version)
      http://dx.doi.org/10.1016/j.solener.2014.02.023
      Collections
      • Department of Electrical and Electronics Engineering 3608
      • Institute of Materials Science and Nanotechnology (UNAM) 1854
      • Nanotechnology Research Center (NANOTAM) 1033
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