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Wide-Band Spectral Control of Au Nanoparticle Plasmon Resonances on a Thermally and Chemically Robust Sensing Platform
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lumdee, Chatdanai Yun, Binfeng Kik, Pieter G. |
| Copyright Year | 2013 |
| Abstract | Gold nanoparticles on Al2O3-coated gold films are presented as a chemically and thermally robust platform for molecular sensing. Single particle spectroscopy as a function of Al2O3 coating thickness shows reproducible gold nanoparticle scattering spectra in the range from 690 to 610 nm as the Al2O3 thickness increases from 0 to 3.4 nm. Numerical simulation of these structures indicates that surface-enhanced Raman spectroscopy enhancement factors in excess of 10 can be achieved. The stability of the Al2O3-coated structures under high-power laser irradiation was tested, revealing stable scattering spectra upon irradiation with 100 W/mm at the particle resonance wavelength. The presented structure solves challenges with thermal stability, wavelength tuning range, and Raman background signal associated with previously attempted approaches. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://kik.creol.ucf.edu/publications/2013-lumdee-jpcc.pdf |
| Alternate Webpage(s) | http://www.creol.ucf.edu/Research/Publications/7032.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Artificial nanoparticles Attempt Coating Excipient Gold Offset binary Plasmon Raman scattering Resonance Simulation Spectroscopy, Near-Infrared Thickness (graph theory) wavelength |
| Content Type | Text |
| Resource Type | Article |