Extending the metal interface generality of surface-enhanced Raman spectroscopy: Underpotential deposited layers of mercury, thallium, and lead on gold electrodes

An investigation of the surface-enhanced Raman scattering (SERS) effect from a new substrate of silver-modified silver electrode

“…We know that the sensitivity for the roughened electrode is not high enough compared to the other SERS substrates due to the instinctive limitation of the electrochemical oxidation-reduction method. Therefore a large number of investigations [21][22][23][24][25] of surface enhancements from various modified electrodes have been carried out in order to optimize the SERS effect and extend the applied region of electrochemically roughened systems.…”

An investigation of the adsorption of pyrazine and pyridine on nickel electrodes by in situ surface-enhanced Raman spectroscopy

“…Several groups have been devising strategies towards this goal for two decades [20][21][22][23][24][25][26][27][28][29][30][31]. For example, people have tried to coat SERS active Ag or Au electrodes with ultrathin films of metals such as Ni, Co and Fe [24][25][26][27], Pt, Pd, Rh and Ru [28][29][30][31] by electrochemical deposition. With the aid of the long-range effect of the electromagnetic (EM) enhancement created by the SERS active substrate underneath, weak SERS spectra of adsorbates on these films have been obtained.…”

Shell‐Isolated Nanoparticle‐Enhanced Raman Spectroscopy (SHINERS)

“…This condition has severely limited the breadth of practical applications of SERS to other materials widely used in materials, energy, medical, and life sciences. Moreover, atomically flat surfaces of various single-crystals, which are commonly used in surface science and semiconductor technology, were almost excluded.To overcome these two problems several groups have developed a strategy of "borrowing SERS activity" to extend the SERS study to non-traditional SERS substrates [33][34][35][36][37][38][39][40][41][42][43][44][45][46][47]. This approach employs the long-range effect of the enormous electromagnetic (EM) field created by the high SERS-active Au or Ag nanostructures nearby.…”

“…In 1987, the groups of Fleischmann [35,36] and Weaver [37][38][39] developed a more effective and feasible way to coat an ultra-thin film of transition metals (Group VIIIB elements) onto SERS-active Au and Ag electrodes, respectively (Figure 8.1b). With the aid of the long-range effect of the strong EM field created by the SERS-active Au or Ag underneath, Raman signals of molecules on the transition metal surfaces can be enormously enhanced.…”