Effects of heavy metal adsorption on silicene

Thaneshwor P. Kaloni, Udo Schwingenschlögl

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Based on first-principles calculations, we study the effects of heavy metal atoms (Au, Hg, Tl, and Pb) adsorbed on silicene. We find that the hollow site is energetically favorable in each case. We particulary address the question how the adsorption modifies the band structure in the vicinity of the Fermi energy. Our results demonstrate that the heavy metal adatoms result in substantial energy gaps and band splittings in the silicene sheet as long as the binding is strong, which, however, is not always the case. (© 2014 WILEY-VCH Verlag GmbH &Co. KGaA, Weinheim) Carbon nanotube flexible sponge was manufactured as high performance electromagnetic shielding material. Chemical vapour deposition (CVD) synthesized sponges with extreme light weight show an electromagnetic shielding above 20 dB and a specific electromagnetic shielding as high as 1100 dB cm3g-1 in the whole 1-18 GHz range. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
Pages (from-to)685-687
Number of pages3
Journalphysica status solidi (RRL) - Rapid Research Letters
Volume8
Issue number8
DOIs
StatePublished - Jun 2 2014

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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