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A new understanding of au-assisted growth of III-V semiconductor nanowires

Författare:
Publiceringsår: 2005
Språk: Engelska
Sidor: 1603-1610
Publikation/Tidskrift/Serie: Advanced Functional Materials
Volym: 15
Nummer: 10
Dokumenttyp: Artikel
Förlag: Wiley

Sammanfattning

Semiconductor nanowires of III-V materials have generated much interest in recent years. However, the growth mechanisms by which these structures form are not well understood. The so-called vapor-liquid-solid (VLS) mechanism has often been proposed for III-V systems, with a chemically inert, liquid metal particle (typically Au) acting as a physical catalyst. We assert here that An is, in fact, not inert with respect to the semiconductor material but rather interacts with it to form a variety of intermetallic compounds. Moreover, we suggest that III-V nanowire growth can best be understood if the metallic particle is not a liquid, but a solid-phase solution or compound containing An and the group III material. The four materials GaP, GaAs, InP, and InAs will be considered, and growth behavior related to their particular temperature-dependent interaction with Au.

Disputation

Nyckelord

  • Physics and Astronomy

Övriga

Published
Yes
  • ISSN: 1616-301X

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