Structural and electronic properties of one dimensional inorganic and organic structures on surfaces

Luca Gavioli, Mattia Fanetti, Maria Grazia Betti, Massimo Sancrotti, M. G. Betti

Risultato della ricerca: Contributo in rivistaArticolo in rivistapeer review

Abstract

We investigate one-dimensional (1-D) nanostructures formed by deposition of potassium on InAs(110) surface and of pentacene on the vicinal Cu(119) surface. Scanning tunneling microscopy (STM) reveals the morphology and the long-range ordering of the nanostructures. Voltage-dependent STM images are used to investigate the electronic structure in the real space. The potassium chains give rise to a delocalized continuum of charge density, suggesting their 1-D electronic nature. 1-D pentacene rows, growing beyond the completion of the first layer, do not show a similar behavior. The formation of the 1-D electronic structures is discussed in term of the substrate-adsorbate interaction. (C) 2004 Elsevier B.V. All rights reserved.
Lingua originaleEnglish
pagine (da-a)235-240
Numero di pagine6
RivistaMicroelectronic Engineering
Volume76
DOI
Stato di pubblicazionePubblicato - 2004

Keywords

  • 1D
  • ADSORPTION
  • GAAS(110)
  • INTERFACE
  • STATES
  • organic nanostrucutres

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