Controlling the interface dynamics at Au nanoparticle-Oxide interfaces

Ramsey A. Kraya, Laura Y. Kraya

Research output: Contribution to journalArticlepeer-review

Abstract

With interface sizes rapidly reducing to the nanometer scale, it has become vital to understand how size and structure can affect transport behavior between materials in order to tune the energy barrier for various applications. In this study, the fabrication of Schottky barriers between 20nm Au nanoparticles and Nb-doped SrTiO 3 substrates is reported. The calculated barrier height and ideality factors are compared for dopant concentrations ranging over three orders of magnitude. The results show that the lowest doped substrates exhibit transport characteristics dominated by thermionic emission while the highest doped substrates are dominated by tunneling and the transition is best described by classical theory with the addition of edge effects to account for nonideal behavior.

Original languageEnglish (US)
Article number5930367
Pages (from-to)12-15
Number of pages4
JournalIEEE Transactions on Nanotechnology
Volume11
Issue number1
DOIs
StatePublished - Jan 2012

Keywords

  • Interface phenomena
  • Schottky barriers
  • nanotechnology
  • semiconductor device doping
  • surface treatment

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering

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