Line Plot from Scientific Research

Polarization-dependent SFG spectra of bridge bonded and on-top CO on Pd/Al2O3 of various particle size and roughness. 6.1 nm particles were prepared at 300 K, 5.9 and 3.6 nm particles at 90 K. Measurements were performed in UHV at 200 K after saturating the surface with CO. The red spectra represent the ssp polarization combination, which is enlarged by a factor of ten with respect to the ppp spectra. SSP spectra are comparably stronger for curved particles. The bottom row shows the normalized spectral fits of the resonant signal without the non-resonant background.

DOI