An X-ray photoelectron spectroscopic study of the adsorption of N2, NH3, NO, and N2O on dysprosium

The nature of nitrogen related point defects in common forms of InN

“…The peak at approximately 397.8 eV is similar in position to the 398.2 eV peak observed by Schreifels et al 28 on dysprosium dosed with molecular nitrogen; those authors attributed the peak to chemisorbed atomic nitrogen, which apparently exists as an intermediary step in the chemical formation of a dysprosium nitride. If the species observed here at 397.8 eV represents a form of atomic nitrogen in InN, then its presence would explain some of the excess nitrogen observed by ERDA in the InN samples.…”

“…A set of typical N 1s core level surface spectra is shown in Fig. 28 N-H species may be expected as a hydrolysis product of InN following exposure to the water in air, via the reaction All the surface spectra shown were calibrated to the C 1s binding energy for adventitious carbon, known to be present at 284.8 eV.…”

Influence of Nitrogen Substitution on the Electronic Structure of Ti2O3: Insights into the Doping‐Induced Insulator‐to‐Metal Transition

“…[ 36,37 ] It shifts to a lower BE (approximately 396 eV) as the TiN film is oxidized, and presumably forms an oxynitride. [ 32 ] This indicates that the N atoms are most likely to be incorporated into the oxide lattice in the form of substitutional N. The weak peak at a higher BE of approximately 400 eV is generally assigned to molecularly surface chemisorbed N. [ 38 ] This implies an NH 3 ‐terminated surface. The incorporation of N into the lattice is corroborated further by the N K ‐edge absorption spectra shown in Figure 2c.…”

Surfaces of rare earth metals

“…The adsorption of nitrogen and nitrogen containing molecules on polycrystalline Dy has been investiaged by XPS (Schreifels et al 1982), and dissociative chemisorption and nitride formation were observed. At low temperature (115 K) some molecular chemisorption was also detected.…”