Fabrication and characterization of size-selected Cu nanoclusters using a magnetron sputtering source

Khadija Said, Naser Qamhieh, Falah Awwad, Ahmad I. Ayesh

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Copper nanoclusters are used widely in applications such as glucose and gas sensors. A physical method is used to produce copper nanoclusters utilizing an ultra-high vacuum (UHV) system. Using a quadrupole mass filter (QMF), the size distribution of the nanoclusters is determined. It is found that varying the source parameters controls the size of the produced Cu nanoclusters. Increasing the aggregation length increases the nanocluster size. Varying the inert gas flow rate has a minor effect on the size at low aggregation length. On the other hand, at high aggregation length the size increases with increasing the gas flow. The results are interpreted in terms of the nucleation time and a two-body collision model between nanoclusters. Moreover, the band gap is measured for different sizes of CuO nanoclusters.

Original languageEnglish
Pages (from-to)112-116
Number of pages5
JournalSensors and Actuators, A: Physical
Volume277
DOIs
Publication statusPublished - Jul 1 2018

Keywords

  • Copper nanocluster
  • Optical gap
  • Two-body collision
  • Ultra high vacuum system

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electrical and Electronic Engineering

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