Ultraviolet Nanoplasmonics: A Demonstration of Surface-Enhanced Raman Spectroscopy, Fluorescence, and Photodegradation Using Gallium Nanoparticles
作者： Yang Yang , John M. Callahan , Tong-Ho Kim , April S. Brown , Henry O. Everitt
DOI: 10.1021/NL401145J
关键词:
摘要: Self-assembled arrays of hemispherical gallium nanoparticles deposited by molecular beam epitaxy on a sapphire support are explored as new type substrate for ultraviolet plasmonics. Spin-casting 5 nm film crystal violet upon these permitted the demonstration surface-enhanced Raman spectra, fluorescence, and degradation following excitation HeCd laser operating at 325 nm. Measured local enhancement factors exceeding 107 demonstrate potential nanoparticle plasmonically enhanced detection remediation.
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