Surface cleaning properties spectra

We have applied the FTIR method to investigate the surface properties of NiO/Ni(100) films by following the adsorption of CO. A comparison of FTIR spectra of CO on various surfaces is shown in Figure 3. Figure 3a is a typical CO chemisorption spectrum on a clean Ni(lOO) surface at 300 K. The CO coverage of this surface is about 0.5 ML with all CO molecules occupying the terminal sites on clean Ni(lOO). The vibrational feature observed at 2032 cm-i can be easily assigned to the... 

The Raman spectrum of nanocrystalline silicon was used to determine the amounts of SiHs, SiH2 and SiH groups present/ IR measurements revealed vSiH bands in the initial stages of porous silicon formation on silicon surfaces vSiH and vSiN IR bands were used to probe hydrogen-bonding properties of nitrogen-doped silicon thin films Surface-IR observation of 5SiH modes showed the formation of Si-H units by decomposition of H2O on a clean Si(100)-(2 X 1) surface ... 

The flat surfaces of the samples were potished, cleaned and coated with silver electrode to get a better Ohmic contact for electric properties measurement. There are total five different electrode size used for electrode size study, as tist in Table-1. After electrode coating, the samples were poled under 3.0 kV/mm electric field at elevated temperature lOO C for Ih in the silicone oil bath. After polarization, the piezoelectric properties were surveyed with an HP4194A Impedance/ Gain-Phase Analyzer and Berlincourt ds3 meter based on the IEEE standards [IEEE, 1987]. Resonant spectrum of the samples was determined in the frequency range from 100 kHz to 1500 kHz, and the results were recorded by a PC base data acquisition system. 

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