SEARCH Articles Figures Tables Photoelectron spectroscopy, XPS Ray Photoelectron Spectroscopy Ray Photoelectron Spectroscopy (XPS) X-ray photoelectron X-ray photoelectron spectroscopy X-ray photoelectron spectroscopy (XPS or ESCA) X-ray photoelectron spectroscopy (XPS, ESCA X-ray photoelectron spectroscopy XPS) method X-ray photoelectron spectroscopy XPS) results XPS XPS spectroscopy