Plasmonic surface nanostructuring of Au-dots@SiO2 via laser-irradiation induced dewetting

Yu, Ruixuan; Shibayama, Tamaki; Ishioka, Junya; Meng, Xuan; Lei, Yanhua; Watanabe, Seiichi

Plasmonic surface nanostructuring of Au-dots@SiO2 via laser-irradiation induced dewetting

Yu, Ruixuan; Shibayama, Tamaki; Ishioka, Junya et al.

Nanotechnology, 2017, 28(27), 275701

Permalink : https://hdl.handle.net/2115/70924

このアイテムのアクセス数:1,166件（2026-08-15 13:22 集計）

閲覧可能ファイル

ファイル	フォーマット	サイズ	閲覧回数	説明
Revised Manuscript_20170502-R2_clear	pdf	2.71 MB	729

論文情報

ファイル出力 EndNote Basic出力 Mendeley出力

アクセス権	open access
URI	https://hdl.handle.net/2115/70924
タイトル	Plasmonic surface nanostructuring of Au-dots@SiO2 via laser-irradiation induced dewetting
著者	Yu, Ruixuan ; Shibayama, Tamaki ; Ishioka, Junya ; Meng, Xuan ; Lei, Yanhua ; Watanabe, Seiichi
著者名 Yu, Ruixuan
e-Rad_Researcher 10241564 著者名 Shibayama, Tamaki
著者名 Ishioka, Junya
著者名 Meng, Xuan
著者名 Lei, Yanhua
e-Rad_Researcher 60241353 著者名 Watanabe, Seiichi
言語	英語
キーワード	in situ observation
	dewetting
	nano particles
	self assembly
	localized surface plasmon resonance
	STEM
	EELS
発行日	2017-07-07
出版者	IOP Publishing
収録物名	Nanotechnology
巻(号)	28(27)
ページ	275701
抄録	The in situ observation of Au dot formation and the self-assembly dynamics of Au nanoparticles (NPs) was successfully demonstrated via dewetting of Au thin films on SiO2 glass substrates under nano-second pulsed laser irradiation using a multi-quantum beam high-voltage electron microscope. Moreover, using electron energy-loss spectroscopy (EELS) performed in a scanning transmission electron microscope (STEM), the plasmonic properties of the formed Au/SiO2 nanostructure were analyzed to demonstrate its validity in advanced optical devices. The uniformly distributed Au NPs evolved into a dot alignment through movement and coalescence processes was demonstrated in this in situ observation. We carried out the plasmon-loss images of the plan view and the cross-section of the Au/SiO2 nanostructures were obtained at the plasmon-loss peak energy for investigate the three-dimensional distribution of surface plasmon. Furthermore, discrete-dipole approximation (DDA) calculations were used to simulate the plasmonic properties, such as the surface plasmon resonance and the surface plasmon field distribution, of isolated single Au/SiO2 nanostructures. This STEM-EELS-acquired surface plasmon map of the cross-sectional sample is in excellent agreement with the DDA calculations. This results demonstrated the influence of the contact condition between Au NP and SiO2 glass on the plasmonic properties, and may improve the technology for developing advanced optical devices.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is an author-created, un-copyedited version of an article accepted for publication in Nanotechnology. The publisher is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://iopscience.iop.org/article/10.1088/1361-6528/aa74f7.
PISSN	0957-4484
関連情報	PMID 28541250
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1088/1361-6528/aa74f7