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Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting
Catone, D.; Ciavardini, A.; Di Mario, L.; Paladini, A.; Toschi, F.; Cartoni, A.; Fratoddi, I.; Venditti, I.; Alabastri, A.; Zaccaria, R. Proietti; O'Keeffe, P.
2018
发表期刊JOURNAL OF PHYSICAL CHEMISTRY LETTERS
卷号9期号:17页码:5002-5008
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.
关键词Gold Nanoparticles Photothermal Therapy Nanorods Nanostructures Temperature Resonances Excitation Heat Size
学科领域Materials Science
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17210
专题2018专题
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GB/T 7714
Catone, D.,Ciavardini, A.,Di Mario, L.,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 Catone, D..,Ciavardini, A..,Di Mario, L..,Paladini, A..,Toschi, F..,...&O'Keeffe, P..(2018).Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,9(17),5002-5008.
MLA Catone, D.,et al."Plasmon Controlled Shaping of Metal Nanoparticle Aggregates by Femtosecond Laser-Induced Melting".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 9.17(2018):5002-5008.
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