It was observed that the increasing the concentrations of REI has a high linear dependence with increased of NBO atoms in the glass network, r 2=0.87. The O 1s spectra suggest that the increase of REI concentration produces additional environments for REI with bonds through lone-pair electrons, favoring the formation of NBOs. While Zn 2p peaks shift by about 1.08, eV towards higher binding energy, and spin-orbit splitting between Zn 2p 3/2 and Zn 2p 1/2 increase of 23.08 eV (TZ1 to TZ3) to 24.09 eV (TZ4) whit the increase REI. If the element is part of insulating chemical compound.

In this analysis, Te 3d peaks shift by about 0.23 eV towards higher binding energy from TZ1 to TZ4, and spin-orbit splitting between Te 3d 5/2 and Te 3d 3/2 to all glasses remain unchanged, ΔE ≈10.4 eV. xi INTRODUCTION This handbook contains wide - scan spectra and narrow. The structural origin of the NBO atoms into the zinc-tellurites glasses is discussed by analysis of the component number from the deconvolution in the XPS spectra. In particular, this showed that Zn N bonds were formed, but another small peak was observed around 402 eV due to N N bond formation in the film.

The NBO atoms were responsible for high polarizability, as confirmed from the correlations between the local structure and polarizability, where have been tentatively established high linear fit r 2=0.96 and 0.98 when the excitation wavelengths are 532 and 632.8 nm, respectively. It was observed that the N1s peak was located at 395.8 eV, which showed a large chemical shift compared to the N2 peak, at 395.8 eV. Influence of Er 3+, Yb 3+ and Tm 3+ on the network structure of zinc-tellurite glasses is investigated by refraction index and high-resolution X-ray photoelectron spectroscopy (XPS) in order to clarify the role of rare-earth ions in the formation of non-bridging and bridging oxygens (NBO and BO, respectively).

Zn xps peak