2011年8月
Fabrication of a Au/Si nanocomposite structure by nanosecond pulsed laser irradiation
NANOTECHNOLOGY
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- 巻
- 22
- 号
- 37
- 開始ページ
- 375607
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1088/0957-4484/22/37/375607
- 出版者・発行元
- IOP PUBLISHING LTD
A gold/silicon nanocomposite structure (NCS) was formed on a Si(100) surface by nanosecond pulsed laser irradiation. The Au/Si NCS contained both Au nanoparticles (NPs) and Au-Si alloy layers. We report that the use of laser irradiation to form Au NPs comprises two competing processes: a top-down effect involving decomposition into smaller NPs and a bottom-up effect involving self-assembly or self-organization into larger NPs. The formation of the periodic structure involved self-organization, i.e., the bottom-up effect, and was observed in situ using a pulsed-laser-equipped high-voltage electron microscope. The NCS formed by laser irradiation can be controlled by adjusting the laser energy density and the number of laser pulses.
- リンク情報
- ID情報
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- DOI : 10.1088/0957-4484/22/37/375607
- ISSN : 0957-4484
- Web of Science ID : WOS:000294718800016