Figure 2

(a) Raman spectra of Bi2Te3 on Gold/c-Al2O3. (b) The amplitude ratio (normalized to A11g peak) and Raman shift at 15 different BG-SAM positions. The inset shows the measured relative positions on the sample.
(a) Raman spectra of Bi2Te3 on Gold/c-Al2O3. (b) The amplitude ratio (normalized to A11g peak) and Raman shift at 15 different BG-SAM positions. The inset shows the measured relative positions on the sample.