Adsorbate effects on photoemission from Ag
作者： C‐W Kim , JC Villagran , U Even , JC Thompson , None
DOI: 10.1063/1.460674
关键词:
摘要: We have used pyridine and a number of related molecules to lower the workfunction thin Ag films so as compare effects various molecular properties on photoemission process surface electronic modes. find that nitrogen lone pair orbital is essential for large threshold shift. Other properties, such dipole moment polarizability very small effect. The are rough, therefore we see strong photoyields at energy plasma mode, 3.6 eV. There also peak in photoyield 3.85 eV, bulk plasmon.
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Helmuth Petersen, S. B. M. Hagström, Optical Excitation of the Surface Photoelectric Effect of Metals Using Synchrotron Radiation Physical Review Letters. ,vol. 41, pp. 1314- 1317 ,(1978) , 10.1103/PHYSREVLETT.41.1314
Rolf R. Gerhardts, Frank Forstmann, Metal optics near the plasma frequency ,(1986)
J. Giergiel, S. Ushioda, J. C. Hemminger, Relative Raman scattering cross sections for chemisorbed and physisorbed pyridine molecules adsorbed on surface-enhanced Raman-scattering-active Ag films in ultrahigh vacuum: Local-field effects in the low-coverage regime. Physical Review B. ,vol. 33, pp. 5657- 5663 ,(1986) , 10.1103/PHYSREVB.33.5657
C. Schwartz, W. L. Schaich, Multipole surface plasmons and photoemission yield spectra Physical Review B. ,vol. 30, pp. 1059- 1061 ,(1984) , 10.1103/PHYSREVB.30.1059
M. Bader, J. Haase, K. -H. Frank, A. Puschmann, A. Otto, Orientational phase transition in the system pyridine/Ag(111): A near-edge x-ray-absorption fine-structure study. Physical Review Letters. ,vol. 56, pp. 1921- 1924 ,(1986) , 10.1103/PHYSREVLETT.56.1921
E.V. Albano, A model for the work function change caused by coadsorption Applications of Surface Science. ,vol. 14, pp. 183- 193 ,(1983) , 10.1016/0378-5963(83)90096-X
J.K. Sass, H.J. Lewerenz, H. Neff, Identification of surface optical photoemission (div Ā ≠ 0) from silver: The significance of high index faces Solid State Communications. ,vol. 31, pp. 829- 832 ,(1979) , 10.1016/0038-1098(79)90397-1
Iven Pockrand, Surface enhanced Raman vibrational studies at solid/gas interfaces ,(1984)
Ph. Avouris, J. E. Demuth, Electronic excitations of benzene, pyridine, and pyrazine adsorbed on Ag(111) Journal of Chemical Physics. ,vol. 75, pp. 4783- 4794 ,(1981) , 10.1063/1.441914
Talat S. Rahman, Alexei A. Maradudin, Surface-plasmon dispersion relation in the presence of surface roughness Physical Review B. ,vol. 21, pp. 2137- 2143 ,(1980) , 10.1103/PHYSREVB.21.2137