Abstract

Irreversible loss of surface-enhanced Raman scattering (SERS) intensity associated with adatomic instability, observable at room temperature in the silver-electrode SERS system, was found to be observable in the copper-electrode SERS system when the solution temperature was raised above 40\ifmmode^\circ\else\textdegree\fi{}C. Surface reflectance of the SERS electrode was found to increase during the irreversible loss of SERS intensity and thus depends on the adatom surface concentration and structure.

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