Study on transport pathway in oxide nanowire growth by using spacing-controlled regular array

Annop Klamchuen, Takeshi Yanagida, Masaki Kanai, Kazuki Nagashima, Keisuke Oka, Sakon Rahong, Meng Gang, Mati Horprathum, Masaru Suzuki, Yoshiki Hidaka, Shoichi Kai, Tomoji Kawai

研究成果: Contribution to journalArticle査読

19 被引用数 (Scopus)

抄録

Metal oxide nanowires formed via vapor-liquid-solid (VLS) process are promising nanoscale building blocks. Although understanding material transport pathways across three phases is crucial to realize well-defined oxide nanowires, such knowledge is unfortunately far from comprehensive. Here we investigate the material transport pathway in VLS grown MgO nanowires by utilizing spacing-controlled regular array. Defining the regular spacing of catalysts allows us to extract the information of transport pathway for each catalyst. We found the significant contribution of vapor phase transport pathway rather than the surface diffusion transport. This result highlights the critical role of re-evaporation process on VLS oxide nanowires.

本文言語英語
論文番号193105
ジャーナルApplied Physics Letters
99
19
DOI
出版ステータス出版済み - 11 7 2011

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(その他)

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