Effects of local gas-flow field on synthesis of oxide nanowires during thermal oxidation

Chunhua Xu, Xianglong Yang, San Qiang Shi, Yang Liu, Charles Surya, Chungho Woo

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

-shaped copper specimens are oxidized in wet air. The results show that totally no-wire structure, CuO whiskers, and the high density of well-aligned CuO nanowires can be formed simultaneously on the different positions of the specimen. A three-dimensional flow simulation results indicate that the direction of velocity vectors of local gas flow affects the alignment of nanowires during oxidation while the shear stress of flowing gas near the surface of a -shaped specimen controls the density of nanowires.

Original languageEnglish
Article number253117
JournalApplied Physics Letters
Volume92
Issue number25
DOIs
Publication statusPublished - Jul 4 2008
Externally publishedYes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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