X-Ray Photoelectron Spectroscopy Of Borate Glasses

The O1s photoelectron spectra in binary borate glasses show lower binding energy shift with increasing alkali or alkaline earth oxide content. The O1s chemical shifts of core-level electrons were roughly interpreted by an empirical expression for the optical basicity of oxides, in which a linear correlation was found between the O1s chemical shift and the basicity. Clear photoelectron spectra near the valance level were obtained and compared with a molecular orbital calculation.