Master of Science in Electrical Engineering (MSEE)
Electrical and Computer Engineering
Biswajit Das, Committee Chair
First Committee Member
Second Committee Member
Graduate Faculty Representative
Laxmi P. Gewali
Number of Pages
In this Thesis, I discuss the theory, implementation and applications of Surface enhanced Raman scattering (SERS). Surface enhanced Raman scattering has been used to detect 4 mercaptopyridine molecules. On a Silicon wafer, Gold nanoparticles are deposited onto Copper nanowires. Hotspots occur at the small gap (less than 10nm) between the nanowire and nanoparticle. The interaction of the electromagnetic field of the incident laser and the surface plasmon resonances of the metal nanoparticles at the hot spots enhances the Raman scattering signal of the adsorbed pyridine molecule (10 -3 M ). The dependence of SERS signal on the polarization angle of the incident laser is observed. When compared to other SERS substrates (gold, silver) this one is very economical.
Copper nanowires; Gold nanoparticles; Nanotechnology; Semiconductors; Surface enhanced Raman scattering (SERS) substrates
Electrical and Computer Engineering | Nanotechnology Fabrication
University of Nevada, Las Vegas
Guttikonda, Roshan, "Individual copper nanowire decorated by gold nanoparticles for Surface enhanced Raman scattering" (2009). UNLV Theses, Dissertations, Professional Papers, and Capstones. 133.
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