Ultrasmooth, Highly Spherical Monocrystalline Gold Particles for Precision Plasmonics

You-Jin Lee; Nicholas B. Schade; Li Sun; Jonathan A. Fan; Doo Ri Bae; Marcelo M. Mariscal; Gaehang Lee; Federico Capasso; Stefano Sacanna; Vinothan N. Manoharan; Gi-Ra Yi

doi:10.1021/nn404765w

Ultrasmooth, Highly Spherical Monocrystalline Gold Particles for Precision Plasmonics

You-Jin Lee, Nicholas B. Schade, Li Sun, Jonathan A. Fan, Doo Ri Bae, Marcelo M. Mariscal, Gaehang Lee, Federico Capasso, Stefano Sacanna, Vinothan N. Manoharan, Gi-Ra Yi

Research output: Contribution to journal › Article › peer-review

131 Scopus citations

Abstract

Ultrasmooth, highly spherical monocrystalline gold particles were prepared by a cyclic process of slow growth followed by slow chemical etching, which selectively removes edges and vertices. The etching process effectively makes the surface tension isotropic, so that spheres are favored under quasi-static conditions. It is scalable up to particle sizes of 200 nm or more. The resulting spherical crystals display uniform scattering spectra and consistent optical coupling at small separations, even showing Fano-like resonances in small clusters. The high monodispersity of the particles we demonstrate should facilitate the self-assembly of nanoparticle clusters with uniform optical resonances, which could in turn be used to fabricate optical metafluids. Narrow size distributions are required to control not only the spectral features but also the morphology and yield of clusters in certain assembly schemes. © 2013 American Chemical Society.

Original language	English (US)
Pages (from-to)	11064-11070
Number of pages	7
Journal	ACS Nano
Volume	7
Issue number	12
DOIs	https://doi.org/10.1021/nn404765w
State	Published - Nov 18 2013
Externally published	Yes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: We dedicate this article to the late Professor Seung-Man Yang for his lifelong contribution to colloid and interface science. We thank H. Baik at KBSI for high-resolution TEM imaging. We thank F. Spaepen for helpful discussions. This work was supported in part by grants from NRF (2009-0082451, 2010-0029409, 2010-1AAA001-0029018). N.B.S. acknowledges support from the DOE SCGF program. L.S. and F.C. acknowledge partial financial support from KAUST University. M.M.M. acknowledges support from CONICET, ANPCyT (PICT2010/1233), and Universidad Nacional de Cordoba. This work was performed in part at the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation under NSF award no. ECS-0335765. CNS is part of Harvard University. This work was supported partially by the Harvard MRSEC program of the National Science Foundation under award number DMR-0820484.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.

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@article{c865cc761ead4491866a32920d65478e,

title = "Ultrasmooth, Highly Spherical Monocrystalline Gold Particles for Precision Plasmonics",

abstract = "Ultrasmooth, highly spherical monocrystalline gold particles were prepared by a cyclic process of slow growth followed by slow chemical etching, which selectively removes edges and vertices. The etching process effectively makes the surface tension isotropic, so that spheres are favored under quasi-static conditions. It is scalable up to particle sizes of 200 nm or more. The resulting spherical crystals display uniform scattering spectra and consistent optical coupling at small separations, even showing Fano-like resonances in small clusters. The high monodispersity of the particles we demonstrate should facilitate the self-assembly of nanoparticle clusters with uniform optical resonances, which could in turn be used to fabricate optical metafluids. Narrow size distributions are required to control not only the spectral features but also the morphology and yield of clusters in certain assembly schemes. {\textcopyright} 2013 American Chemical Society.",

author = "You-Jin Lee and Schade, {Nicholas B.} and Li Sun and Fan, {Jonathan A.} and Bae, {Doo Ri} and Mariscal, {Marcelo M.} and Gaehang Lee and Federico Capasso and Stefano Sacanna and Manoharan, {Vinothan N.} and Gi-Ra Yi",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We dedicate this article to the late Professor Seung-Man Yang for his lifelong contribution to colloid and interface science. We thank H. Baik at KBSI for high-resolution TEM imaging. We thank F. Spaepen for helpful discussions. This work was supported in part by grants from NRF (2009-0082451, 2010-0029409, 2010-1AAA001-0029018). N.B.S. acknowledges support from the DOE SCGF program. L.S. and F.C. acknowledge partial financial support from KAUST University. M.M.M. acknowledges support from CONICET, ANPCyT (PICT2010/1233), and Universidad Nacional de Cordoba. This work was performed in part at the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation under NSF award no. ECS-0335765. CNS is part of Harvard University. This work was supported partially by the Harvard MRSEC program of the National Science Foundation under award number DMR-0820484. This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2013",

month = nov,

day = "18",

doi = "10.1021/nn404765w",

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AU - Lee, You-Jin

AU - Schade, Nicholas B.

AU - Sun, Li

AU - Fan, Jonathan A.

AU - Bae, Doo Ri

AU - Mariscal, Marcelo M.

AU - Lee, Gaehang

AU - Capasso, Federico

AU - Sacanna, Stefano

AU - Manoharan, Vinothan N.

AU - Yi, Gi-Ra

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: We dedicate this article to the late Professor Seung-Man Yang for his lifelong contribution to colloid and interface science. We thank H. Baik at KBSI for high-resolution TEM imaging. We thank F. Spaepen for helpful discussions. This work was supported in part by grants from NRF (2009-0082451, 2010-0029409, 2010-1AAA001-0029018). N.B.S. acknowledges support from the DOE SCGF program. L.S. and F.C. acknowledge partial financial support from KAUST University. M.M.M. acknowledges support from CONICET, ANPCyT (PICT2010/1233), and Universidad Nacional de Cordoba. This work was performed in part at the Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Infrastructure Network (NNIN), which is supported by the National Science Foundation under NSF award no. ECS-0335765. CNS is part of Harvard University. This work was supported partially by the Harvard MRSEC program of the National Science Foundation under award number DMR-0820484. This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2013/11/18

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N2 - Ultrasmooth, highly spherical monocrystalline gold particles were prepared by a cyclic process of slow growth followed by slow chemical etching, which selectively removes edges and vertices. The etching process effectively makes the surface tension isotropic, so that spheres are favored under quasi-static conditions. It is scalable up to particle sizes of 200 nm or more. The resulting spherical crystals display uniform scattering spectra and consistent optical coupling at small separations, even showing Fano-like resonances in small clusters. The high monodispersity of the particles we demonstrate should facilitate the self-assembly of nanoparticle clusters with uniform optical resonances, which could in turn be used to fabricate optical metafluids. Narrow size distributions are required to control not only the spectral features but also the morphology and yield of clusters in certain assembly schemes. © 2013 American Chemical Society.

AB - Ultrasmooth, highly spherical monocrystalline gold particles were prepared by a cyclic process of slow growth followed by slow chemical etching, which selectively removes edges and vertices. The etching process effectively makes the surface tension isotropic, so that spheres are favored under quasi-static conditions. It is scalable up to particle sizes of 200 nm or more. The resulting spherical crystals display uniform scattering spectra and consistent optical coupling at small separations, even showing Fano-like resonances in small clusters. The high monodispersity of the particles we demonstrate should facilitate the self-assembly of nanoparticle clusters with uniform optical resonances, which could in turn be used to fabricate optical metafluids. Narrow size distributions are required to control not only the spectral features but also the morphology and yield of clusters in certain assembly schemes. © 2013 American Chemical Society.

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EP - 11070

JO - ACS Nano

JF - ACS Nano

IS - 12

ER -

Ultrasmooth, Highly Spherical Monocrystalline Gold Particles for Precision Plasmonics

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