UPS studies on photodesorption of NO from Pt(001)

✍ Scribed by M.-B. Song; S. Mizuno; K. Fukutani; Y. Murata

• Book ID: 103032914
• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 351 KB
• Volume: 196
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(92)85993-k

✦ Synopsis

Changes in the electronic structure of NO adsorbed,on a clean Pt (00 1 )-hex RO. 7 ' surface at 80 K are investigated as a function of NO exposure and after ArF excimer laser ( 193 nm) irradiation by ultraviolet photoelectron spectroscopy. An adsorbed NO species active to laser-stimulated desorption appears at higher coverages, and is characterized by a band derived from the 2x orbital of NO at binding energies Es = 1.6-2.7 eV below the Fermi level. In addition to the band, two peaks appear at E,, = 2.5 and 3.0 eV, which are attributed to NO adsorbed on the hex and 1 x 1 areas, respectively.