Template-assisted vapour–liquid–solid growth of InP nanowires on (001) InP and Si substrates

Research output: Contribution to journalArticle

Abstract

We report on the synthesis of vertical InP nanowire arrays on (001) InP and Si substrates using template-assisted vapour–liquid–solid growth. A thick silicon oxide layer was first deposited on the substrates. The samples were then patterned by electron beam lithography and deep dry etching through the oxide layer down to the substrate surface. Gold seed particles were subsequently deposited in the holes of the pattern by the use of pulse electrodeposition. The subsequent growth of nanowires by the vapour–liquid–solid method was guided towards the [001] direction by the patterned oxide template, and displayed a high growth yield with respect to the array of holes in the template. In order to confirm the versatility and robustness of the process, we have also demonstrated guided growth of InP nanowire p–n junctions and InP/InAs/InP nanowire heterostructures on (001) InP substrates. Our results show a promising route to monolithically integrate III–V nanowire heterostructure devices with commercially viable (001) silicon platforms.

Details

Authors
Organisations
External organisations
  • Research Institutes of Sweden (RISE)
  • Halmstad University
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Condensed Matter Physics
  • Materials Chemistry
Original languageEnglish
Pages (from-to)888-894
Number of pages7
JournalNanoscale
Volume12
Issue number2
Early online date2019 Dec 10
Publication statusPublished - 2020 Jan 14
Publication categoryResearch
Peer-reviewedYes

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