Flame synthesis of aligned tungsten oxide nanowires

Fusheng Xu, Stephen D. Tse, Jafar F. Al-Sharab, Bernard H. Kear

Research output: Contribution to journalArticlepeer-review

55 Scopus citations

Abstract

Aligned single-crystal W O2.9 nanowires are grown directly from tungsten substrates at high rates using a flame synthesis method. The nanowires have diameters of 20-50 nm, lengths >10 μm, coverage density of 109 - 1010 cm-2, and growth rates >1 μmmin. Growth occurs by the vapor-solid mechanism, with local gas-phase temperature (∼1720 K) and chemical species (O2, H2 O, and H2) strategically specified at the substrate for self-synthesis. Advantages of this synthesis method are reduced processing times, absence of necessity for substrate pretreatment or catalysts, scalability for large-area surface coverage, high purity and yield of oriented nanowires, and continuous processing conditions.

Original languageEnglish (US)
Article number243115
JournalApplied Physics Letters
Volume88
Issue number24
DOIs
StatePublished - Jun 12 2006

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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