Journal
JOURNAL OF PHYSICAL CHEMISTRY C
Volume 115, Issue 11, Pages 4387-4394Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jp109348b
Keywords
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Funding
- Directorate For Engineering
- Div Of Chem, Bioeng, Env, & Transp Sys [0930781] Funding Source: National Science Foundation
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We fabricated silver nanowire crossbars partially decorated with silver nanoparticles via a double-step transversal capillary transfer microprinting approach and demonstrated their polarization-dependent surface-enhanced Raman scattering (SERS) properties. We demonstrated that SERS intensity of nanowire junctions and nanowire nanoparticle junctions can be turned on/off on demand by the rotation of the polarization plane, which excites specific transversal plasmon resonances and initiates selective excitation/suppression of central and auxiliary nanostructured junctions. We suggest that massive fabrication of such addressable crossbar nanojunctions is important for exploiting these SERS markers for chemical and biological detection assays.
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