Role of surrounding oxygen on oxide nanowire growth

Annop Klamchuen, Takeshi Yanagida, Masaki Kanai, Kazuki Nagashima, Keisuke Oka, Tomoji Kawai, Masaru Suzuki, Yoshiki Hidaka, Shoichi Kai

Research output: Contribution to journalArticlepeer-review

36 Citations (Scopus)

Abstract

The ability to control oxide nanowires via vapor-liquid-solid (VLS) mechanism remains an important challenge to explore various applications of oxide nanowires. Here we demonstrate the crucial roles of surrounding oxygen on VLS grown SnO2 nanowires. When the partial pressure of surrounding oxygen is relatively low, the oxygen mainly acts as an oxygen source, promoting VLS growth. While for relatively high oxygen partial pressures, vapor-solid (VS) growth emerges, suppressing nanowire growth. The findings as to the roles of surrounding oxygen on the inherent competition between VLS and VS growths are in principle rather universal for VLS grown nanowires of various oxides.

Original languageEnglish
Article number073114
JournalApplied Physics Letters
Volume97
Issue number7
DOIs
Publication statusPublished - Aug 16 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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