Tunable plasmonic lattices of silver nanocrystals

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Silver nanocrystals are ideal building blocks for plasmonicmaterials that exhibit a wide range of unique and potentially usefuloptical phenomena. Individual nanocrystals display distinct opticalscattering spectra and can be assembled into hierarchical structures thatcouple strongly to external electromagnetic fields. This coupling, whichis mediated by surface plasmons, depends on their shape and arrangement.Here we demonstrate the bottom-up assembly of polyhedral silvernanocrystals into macroscopic two-dimensional superlattices using theLangmuir-Blodgett technique. Our ability to control interparticlespacing, density, and packing symmetry allows for tunability of theoptical response over the entire visible range. This assembly strategyoffers a new, practical approach to making novel plasmonic materials forapplication in ... continued below

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Tao, Andrea; Sinsermsuksakul, Prasert & Yang, Peidong February 18, 2008.

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Silver nanocrystals are ideal building blocks for plasmonicmaterials that exhibit a wide range of unique and potentially usefuloptical phenomena. Individual nanocrystals display distinct opticalscattering spectra and can be assembled into hierarchical structures thatcouple strongly to external electromagnetic fields. This coupling, whichis mediated by surface plasmons, depends on their shape and arrangement.Here we demonstrate the bottom-up assembly of polyhedral silvernanocrystals into macroscopic two-dimensional superlattices using theLangmuir-Blodgett technique. Our ability to control interparticlespacing, density, and packing symmetry allows for tunability of theoptical response over the entire visible range. This assembly strategyoffers a new, practical approach to making novel plasmonic materials forapplication in spectroscopic sensors, sub-wavelength optics, andintegrated devices that utilize field enhancement effects.

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  • Journal Name: Nature Nano; Journal Volume: 2; Related Information: Journal Publication Date: 07/2007

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  • Report No.: LBNL--63802
  • Grant Number: DE-AC02-05CH11231
  • Office of Scientific & Technical Information Report Number: 925611
  • Archival Resource Key: ark:/67531/metadc898994

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  • February 18, 2008

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  • Sept. 27, 2016, 1:39 a.m.

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  • Oct. 31, 2016, 3:59 p.m.

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Tao, Andrea; Sinsermsuksakul, Prasert & Yang, Peidong. Tunable plasmonic lattices of silver nanocrystals, article, February 18, 2008; Berkeley, California. (digital.library.unt.edu/ark:/67531/metadc898994/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.