Zinc

Zinc analysis is typically performed on the Zn 2p photoemission, however obtaining the Zn KLL auger region is often paramount for interpreting the data correctly. There may be a slight overlap between the Zn 2p peaks and the O and V KLL augers from Al X-rays, however it should not impede deconvolution, partly due to the large doublet separation (23 eV).

Figure 1: Zn 2p of zinc metal(1)

Common binding energies for Zinc species may be found below:

Species Binding energy / eV Charge Ref. Ref.
Zn 1021.65 Au 4f / 83.95 eV 1
ZnO 1021.7 C 1s / 285 eV 2
Table 1: Zinc binding energies

While the separation above may be small, as mentioned previously, the Zn LMM auger may assist in spectral understanding via the modified Auger parameters (table 2).

Species α‘ / eV Ref
Zn 2014 3
ZnO 2009.8 3
Table 2: Modified auger parameters for Zinc species
Figure 2: Zn LMM region of Zn metal(1)
  1. Data acquired by HarwellXPS
  2. Ramgir, N. S., et al. (2006). “ZnO multipods, submicron wires, and spherical structures and their unique field emission behavior.” The Journal of Physical Chemistry B 110(37): 18236-18242. Read it online here.
  3. Diler, E., et al. (2014). “Initial formation of corrosion products on pure zinc and MgZn2 examinated by XPS.” Corrosion science 79: 83-88. Read it online here.
Created: April 1, 2020