Abstract
This paper investigates in detail the profiles of the nanostructures fabricated by nanosphere lithography through oblique deposition and perpendicular etching. 2D or 3D nanostructures can be achieved by this cost-effective method. Because the optical response of a particular nanoparticle depends on its size and shape, this angle deposition method can produce various shapes of nanostructures, which are suitable for localized surface plasmon resonance biosensor applications. The nanostructure profiles under various deposition and etching conditions are simulated in our work. The calculated 3D profiles are verified by the 3D nanostructures fabricated in our experiments, and the calculated 2D profiles are in good agreement with the fabricated nanocrescents reported by another research group. This paper gives a full theoretical solution of the obtainable nanostructure shapes by nanosphere lithography utilizing oblique deposition and perpendicular etching.
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Aizpurua J, Hanarp P, Sutherland DS, Kall M, Bryant GW, Garcia de Abajo FJ (2003) Optical properties of gold nanorings. Phys Rev Lett 90(5):057401
Haynes CL, Duyne RPV (2001) Nanosphere lithography: a versatile nanofabrication tool for studies of size-dependent nanoparticle optics. J Phys Chem B 105(24):5599–5611
Astilean S (2004) Fabrication of periodic metallic nanostructures by using nanosphere lithography. Rom Rep Phys 56(3):340–345
Haes AJ, Stuart DA, Nie S, Duyne RPV (2004) Using solution-phase nanoparticles, surface-confined nanoparticle arrays and single nanoparticles as biological sensing platforms. J Fluoresc 14(4):355–367
Jensen TR, Malinsky MD, Haynes CL, Duyne RPV (2000) Nanosphere lithography: tunable localized surface plasmon resonance spectra of silver nanoparticles. J Phys Chem B 104(45):10549–10556
Hulteen JC, Duyne RPV (1995) Nanosphere lithography: A materials general fabrication process for periodic particle array surfaces. J Vac Sci Technol A Vac Surf Films 13(3):1553–1558
Shumaker-Parry JS, Rochholz H, Kreiter M (2005) Fabrication of crescent-shaped optical antennas. Adv Mater 17:2131–2134
Maier SA, Kik PG, Atwater HA, Meltzer S, Harel E, Koel BE, Requicha AAG (2003) Local detection of electromagnetic energy transport below the diffraction limit in metal nanoparticle plasmon waveguides. Nat Mater 2:229–232
Maier SA, Atwater HA (2005) Plasmonics: localization and guiding of electromagnetic energy in metal/dielectric structures. J Appl Phys 98:011101
Haynes CL, McFarland AD, Zhao L, Duyne RPV, Schatz GC, Gunnarsson L, Prikulis J, Kasemo B, Käll M (2003) Nanoparticle optics: the importance of radiative dipole coupling in two-dimensional nanoparticle arrays. J Phys Chem B 107(30):7337–7342
Grigorenko AN, Geim AK, Gleeson HF, Zhang Y, Firsov AA, Khrushchev IY, Petrovic J (2005) Nanofabricated media with negative permeability at visible frequencies. Nature 438:335–338
Fang N, Lee H, Sun C, Zhang X (2005) Sub-diffraction-limited optical imaging with a silver superlens. Science 308:534–537
Lu Y, Liu GL, Kim J, Mejia YX, Lee LP (2005) Nanophotonic crescent moon structures with sharp edge for ultrasensitive biomolecular detection by local electromagnetic field enhancement effect. Nano Lett 5(1):119–124
Kelly KL, Coronado E, Zhao LL, Schatz GC (2003) The optical properties of metal nanoparticles: the influence of size, shape, and dielectric environment. J Phys Chem B 107(3):668–677
Acknowledgements
This work was financially supported by the A*STAR project “Localized Surface Plasmon Resonance (LSPR) MEMS Device with Nano-structured Noble Metal,” granted number IMRE/06-1R0320. We also acknowledge some fabrication support and simulation suggestions provided by the MicroFabrication Laboratory in the Electrical and Electronic Engineering School of Nanyang Technological University.
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Zhou, X., Virasawmy, S., Knoll, W. et al. Profile Simulation and Fabrication of Gold Nanostructures by Separated Nanospheres with Oblique Deposition and Perpendicular Etching. Plasmonics 2, 217–230 (2007). https://doi.org/10.1007/s11468-007-9040-0
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DOI: https://doi.org/10.1007/s11468-007-9040-0