Publications by authors named "Alberto Herrera-Gomez"
Article Synopsis
- The study explores using low-density polyethylene (LDPE) as an alternative calibration material for x-ray photoelectron spectrometers, instead of traditional materials like gold and silver.
- Researchers developed improved LDPE reference spectra, which led to a modest absolute offset of about 3.0% and systematic deviations averaging ±6.5% when compared to gold calibration methods.
- The study also highlights the challenges of using LDPE, including surface roughness and issues with low count rates, and provides an updated LDPE calibration protocol to enhance accuracy and consistency in the field.
The structure of 3 nm and 15 nm diamond-like carbon films, grown on Si(001) by filtered cathodic arc, was studied by angle-resolved X-ray photoelectron spectroscopy (ARXPS) and transmission electron microscopy (TEM). The ARXPS data was deconvolved by employing simultaneous-fitting, which allowed for a clear deconvolution of the Si 2p and C 1s spectra into their different chemical contributions. An analysis of the take-off angle dependence of the peak intensities allowed for an independent identification of the physical origin of the chemical species.
View Article and Find Full Text PDF