Cyanide-free preparation of gold nanowires: Controlled crystallinity, crystallographic orientation and enhanced field emission

Shuangbao Lyu, Dangyuan Lei, Wenqiang Liu, Huijun Yao, Dan Mo, Yonghui Chen, Peipei Hu, Youmei Sun, Jie Liu, Jing Lai Duan

Research output: Journal article publicationJournal articleAcademic researchpeer-review

3 Citations (Scopus)

Abstract

The environmentally friendly preparation of nanomaterials with controlled structural features represents a development trend of nanoscience and nanotechnology. In this work, using a cyanide-free bath, gold nanowires with controlled crystallinity and preferred crystallographic orientation have been prepared by electrochemical deposition in home-made polycarbonate ion track-etched templates. Single-crystal and polycrystal gold nanowires with preferred orientations along the [111] and [100] directions have been obtained by selecting fabrication parameters. The influence mechanisms of nanopore diameter, applied voltage, and deposition temperature on structural properties are proposed. In addition, single-crystal nanowires with [100] preferred orientation show enhanced field emission, which may be attributed to their single-crystal structure and the lower work function of loosely packed crystal planes.
Original languageEnglish
Pages (from-to)32103-32109
Number of pages7
JournalRSC Advances
Volume5
Issue number41
DOIs
Publication statusPublished - 1 Jan 2015

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

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