Al nanoparticle arrays for broadband absorption enhancements in GaAs devices

Nicholas P. Hylton, Xiaofeng Li, Vincenzo Giannini, Kan Hua Lee, Ned J. Ekins-Daukes, Josine Loo, Dries Vercruysse, Pol Van Dorpe, Hassanet Sodabanlu, Masakazu Sugiyama, Stefan A. Maier

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther

1 Citation (Scopus)


We present the results of a series of comprehensive simulations comparing the performance of GaAs solar cells with periodic arrays of Au, Ag and Al nanoparticles on the front surface. Using optical and electronic calculations we show that the choice of scattering material is crucial to minimize parasitic losses and achieve broadband absorption enhancements. In particular, we demonstrate that by using Al nanoparticle arrays the optical absorption can be enhanced across a spectral range from 350-900 nm leading to an increase in power conversion efficiency of more than 45 % compared to a flat cell.

Original languageEnglish
Title of host publication39th IEEE Photovoltaic Specialists Conference, PVSC 2013
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages3
ISBN (Print)9781479932993
Publication statusPublished - 2013
Externally publishedYes
Event39th IEEE Photovoltaic Specialists Conference, PVSC 2013 - Tampa, FL, United States of America
Duration: 16 Jun 201321 Jun 2013

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371


Conference39th IEEE Photovoltaic Specialists Conference, PVSC 2013
Country/TerritoryUnited States of America
CityTampa, FL


  • Aluminum
  • Gallium arsenide
  • Nanoparticles
  • Photovoltaic cells
  • Plasmons

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