X-ray photoelectron spectrum of glassy B2S3. Experimental and theoretical study

Abstract

The electronic structure of glassy B₂S₃ has been investigated using X-ray photoelectron spectroscopy and the B 1s and S 2p binding energies of this very hygroscopic material have been unambiguously determined. In addition to the experimental analysis of the core and valence spectra, theoretical models have been used (ab initio and TB-EHT). All the data strengthen the previous structural hypothesis and significant interactions between the π-systems of sulfur and boron atoms have been evidenced.