Author/Authors :
Pietzsch، نويسنده , , Annette and Hennies، نويسنده , , Franz and Fِhlisch، نويسنده , , Alexander and Wurth، نويسنده , , Wilfried and Nagasono، نويسنده , , Mitsuru and Witkowski، نويسنده , , Nadine and Piancastelli، نويسنده , , Maria Novella، نويسنده ,
Abstract :
The adsorption of acetylene on single-domain Si(0 0 1)-(2 × 1) surfaces has been investigated at room temperature using fully polarization resolved near edge X-ray absorption fine structure (NEXAFS) spectroscopy. Two coexisting adsorption species have been observed, which we ascribe to the dimerized and end-bridge structures. In both cases, the Si dimers remain intact and the acetylene carbon atoms rehybridize to sp2.
Keywords :
Silicon , Alkynes , Near edge extended X-ray absorption fine structure (NEXAFS) , Chemisorption , X-ray absorption spectroscopy
