Abstract

Surface enhanced Raman scattering (SERS) spectra of Rhodamine 6G adsorbed on silver nanoparticles have been measured using an optical fiber from 22 to 85°C. The fiber carries both the laser excitation and SERS signal, providing a convenient scheme for in-situ SERS measurement at high-temperature microscale environments. It is found that although SERS intensity generally decreases with increasing temperature, the signal is still significant and stable at high-temperature up to 85°C. More importantly, the SERS signal is reversible with respect to the temperature change. These results are important for high-temperature SERS applications in chemical and biological detection.

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