Scalable Manufacturing of Plasmonic Nanodisk Dimers and Cusp Nanostructures Using Salting-out Quenching Method and Colloidal Lithography

Juluri, Bala Krishna; Chaturvedi, Neetu; Hao, Qingzhen; Lu, Mengqian; Velegol, Darrell; Jensen, Lasse; Huang, Tony Jun

doi:10.1021/nn201595x

Cited by 28 publications

(24 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Significant advances in fabrication and manipulation techniques nowadays allow for precise control of the geometry of the structure [21][22][23][24][25][26][27][28][29]. In particular, for nanoparticle assemblies, the width of the gap between adjacent nanoparticles can be brought below one nanometer so that electron tunneling across the junction becomes possible.…”

Section: Introductionmentioning

confidence: 99%

Quantum effects and nonlocality in strongly coupled plasmonic nanowire dimers

et al. 2013

View full text Add to dashboard Cite

Abstract:Using a fully quantum mechanical approach we study the optical response of a strongly coupled metallic nanowire dimer for variable separation widths of the junction between the nanowires. The translational invariance of the system allows to apply the time-dependent density functional theory (TDDFT) for nanowires of diameters up to 10 nm which is the largest size considered so far in quantum modeling of plasmonic dimers. By performing a detailed analysis of the optical extinction, induced charge densities, and near fields, we reveal the major nonlocal quantum effects determining the plasmonic modes and field enhancement in the system. These effects consist mainly of electron tunneling between the nanowires at small junction widths and dynamical screening. The TDDFT results are compared with results from classical electromagnetic calculations based on the local Drude and non-local hydrodynamic descriptions of the nanowire permittivity, as well as with results from a recently developed quantum corrected model. The latter provides a way to include quantum mechanical effects such as electron tunneling in standard classical electromagnetic simulations. We show that the TDDFT results can be thus retrieved semi-quantitatively within a classical framework. We also discuss the shortcomings of classical non-local hydrodynamic approaches. Finally, the implications of the actual position of the screening charge density at the gap interfaces are discussed in connection with plasmon ruler applications at subnanometric distances. References and links 1. L. Kelly, E. Coronado, L. L. Zhao, and G. C. Schatz, "The optical properties of metal nanoparticles: the influence of size, shape and dielectric environment," J. Phys. Chem. B 107, 668-667 (2003 B 48, 18178-18188 (1993). 68. P. Apell, and D. R. Penn, "Optical properties of small metal spheres: surface effects," Phys. Rev. Lett. 50, 1316Lett. 50, -1319Lett. 50, (1983. 69. J.-H. Klein-Wiele, P. Simon, and H.-G. Rubahn, "Size-Dependent Plasmon lifetimes and electron-phonon coupling time constants for surface bound Na clusters," Phys. Rev. Lett. 80, 45-48 (1998 B 52, 14219-14234 (1995). 81. L. Serra, and A. Rubio, "Core polarization in the optical response of metal clusters: generalized time-dependent density-functional theory," Phys. Rev. Lett. 78, 1428Lett. 78, -1431Lett. 78, (1997. 82. E. Prodan, P. Nordlander, and N. J. Halas, "Electronic structure and optical properties of Gold nanoshells," Nano Lett. 3, 1411Lett. 3, -1415Lett. 3, (2003. 83. E. Prodan, P. Nordlander, and N. J. Halas, "Effects of dielectric screening on the optical properties of metallic nanoshells," Chem. Phys. Lett. 368, 94-101 (2003). 84. K.-D. Tsuei, E. W. Plummer, A. Liebsch, K. Kempa, and P. Bakshi, "Multipole plasmon modes at a metal surface," Phys. Rev. Lett. 64, 44-47 (1990). 85. A. J. Bennett, "Influence of the electron charge distribution on surface-plasmon dispersion," Phys. 80, 5105-5108 (1998). 88. S. Berciaud, L. Cognet, P. Tamarat, and B. Lounis, "Observation of intrinsic si...

show abstract

Section: Introductionmentioning

confidence: 99%

Quantum effects and nonlocality in strongly coupled plasmonic nanowire dimers

et al. 2013

View full text Add to dashboard Cite

show abstract

“…Disks can also be used in plasmonics and serve as perfect absorber and SERS substrate. Velegol and coworkers fabricated two types of nanostructures with large electric field: nanodisk dimers and cusp nanostructures . Both of these structures had a well‐defined geometry for the localization of large electric fields.…”

Section: New Development In Colloidal Lithographymentioning

confidence: 99%

Advanced Colloidal Lithography Beyond Surface Patterning

Möhwald

Wang

et al. 2016

Adv Materials Inter

View full text Add to dashboard Cite

This progress report presents an overview of recent development of colloidal lithography (CL) and its applications in fabrication of various nanostructures consisted of orderly arranged, dots, holes, bowls, cones, pillars, rings, shells and triangles. These structures have been widely exploited in various fields, including plasmonics, optics, wettability, sensors, solar cells, organic light-emitting diode (OLEDs), biology and many others. The recent successes in the technical applications of the nanostructures fabricated via CL will be summarized. Hopefully, the present review will inspire more ingenious designs and execution of CL for advanced, smart applications

show abstract

“…It could be interpreted by plasmonic coupling (or plasmon hybridization) that has been well studied. [24], [25], [26] The red shift must be caused by coupling between the 3-dimensional bicontinuous porous nanostructures and the external geometrical size and shape. Such coupling is observed as spectral overlap between the in-plane resonance and the NPG LSPR.…”

Section: Npg Disk Plasmonicsmentioning

confidence: 99%

Monolithic nanoporous gold disks with large surface area and high-density plasmonic hot-spots

et al. 2015

View full text Add to dashboard Cite

Plasmonic metal nanostructures have shown great potential in sensing, photovoltaics, imaging and biomedicine, principally due to enhancement of the local electric field by light-excited surface plasmons, the collective oscillation of conduction band electrons. Thin films of nanoporous gold have received a great deal of interest due to the unique 3-dimensional bicontinuous nanostructures with high specific surface area. However, in the form of semi-infinite thin films, nanoporous gold exhibits weak plasmonic extinction and little tunability in the plasmon resonance, because the pore size is much smaller than the wavelength of light. Here we show that by making nanoporous gold in the form of disks of sub-wavelength diameter and sub-100 nm thickness, these limitations can be overcome. Nanoporous gold disks (NPGDs) not only possess large specific surface area but also high-density, internal plasmonic "hot-spots" with impressive electric field enhancement, which greatly promotes plasmon-matter interaction as evidenced by spectral shifts in the surface plasmon resonance. In addition, the plasmonic resonance of NPGD can be easily tuned from 900 to 1850 nm by changing the disk diameter from 300 to 700 nm. The coupling between external and internal nanoarchitecture provides a potential design dimension for plasmonic engineering. The synergy of large specific surface area, high-density hot spots, and tunable plasmonics would profoundly impact applications where plasmonic nanoparticles and non-plasmonic mesoporous nanoparticles are currently employed, e.g., in in-vitro and in-vivo biosensing, molecular imaging, photothermal contrast agents, and molecular cargos.

show abstract

Scalable Manufacturing of Plasmonic Nanodisk Dimers and Cusp Nanostructures Using Salting-out Quenching Method and Colloidal Lithography

Cited by 28 publications

References 67 publications

Quantum effects and nonlocality in strongly coupled plasmonic nanowire dimers

Quantum effects and nonlocality in strongly coupled plasmonic nanowire dimers

Advanced Colloidal Lithography Beyond Surface Patterning

Monolithic nanoporous gold disks with large surface area and high-density plasmonic hot-spots

Contact Info

Product

Resources

About