Ultrathin silicon solar cells with enhanced photocurrents assisted by plasmonic nanostructures

Sanshui Xiao, Erik Stassen, N. Asger Mortensen

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Thin-film photovoltaics offers the potential for a significant cost reduction compared
to traditional photovoltaics. However, the performance of thin-film solar cells is limited by poor
light absorption. We have devised an ultra-thin-film silicon solar cell configuration assisted by
plasmonic nanostructures. By placing a one-dimensional plasmonic nanograting on the bottom
of the solar cell, the generated photocurrent for a 200 nm-thickness crystalline silicon solar cell
can be enhanced by 90% in the considered wavelength range, while keeping insensitive to the
incident angle. These results are paving a promising way for the realization of high-efficiency
thin-film solar cells.
Original languageEnglish
Article number061503
JournalJournal of Nanophotonics
Issue number1
Number of pages9
Publication statusPublished - 2012

Bibliographical note

Copyright 2012 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.


  • Solar cells
  • Plasmonics
  • Absorption enhancement
  • Grating

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