Figure 4

Time resolved adsorption behavior of BATH onto the SERS-substrate at room temperature. At each time a spectrum was taken (spectra on the right) and the peak area of the benzene breathing mode at \(783\,c{m}^{-1}\) is plotted versus time. In red, a fit using a Hill-Langmuir function, is performed. Right: Spectra at three different times. At \(t\,\mathrm{=\; 48}\) min the saturation of the peak area starts, at \(t\,\mathrm{=\; 15}\) min the BTAH can be unambiguously detected. At \(t\,\mathrm{=\; 10}\) min the BTAH peak is visible but to small to be used as reference.