Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2018专题

	Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting
	Alabastri, A.; Venditti, I.; Fratoddi, I.; Cartoni, A.; Toschi, F.; Paladini, A.; Di Mario, L.; Ciavardini, A.; Catone, D.; O'Keeffe, P.
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2018
卷号	9 期号:17 页码:5002-5008
关键词	Gold Nanoparticles Photothermal Therapy Nanorods Nanostructures Temperature Resonances Excitation Heat Size
英文摘要	In this work, we show how to control the morphology of femtosecond laser melted gold nanosphere aggregates. A careful choice of both laser fluence and wavelength makes it possible to selectively excite different aggregate substructures to produce larger spherical nanoparticles, nanorods, and nanoprisms or necklace-like 1D nanostructures in which the nanoparticles are interlinked by bridges. Finite integral technique calculations have been performed on the near-field concentration of light in the nanostructures which confirm the wavelength dependence of the light concentration and suggest that the resulting localized high intensities lead to nonthermal melting. We show that by tuning the wavelength of the melting light it is possible to choose the spatial extension of the ensembles of NPs heated thus allowing us to exhibit control over the morphology of the nanostructures formed by the melting process. By a proper combination of this method with self-assembly of chemically synthesized nanoparticles, one can envisage the development of an innovative high-throughput high-resolution nanofabrication technique.
学科主题	Materials Science
语种	英语
公开日期	2018-12-04
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/17210]
专题	2018专题
推荐引用方式 GB/T 7714	Alabastri, A.,Venditti, I.,Fratoddi, I.,et al. Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2018,9(17):5002-5008.
APA	Alabastri, A..,Venditti, I..,Fratoddi, I..,Cartoni, A..,Toschi, F..,...&Zaccaria, R. Proietti.(2018).Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,9(17),5002-5008.
MLA	Alabastri, A.,et al."Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 9.17(2018):5002-5008.