e-Journal of Surface Science and Nanotechnology
Online ISSN : 1348-0391
ISSN-L : 1348-0391
Conference -ISSS-4-
Multiple-Scattering Approach to Angle-Resolved Ultraviolet Photoelectron Spectroscopy of Large Molecules
S. NagamatsuS. KeraK. OkudairaT. FujikawaN. Ueno
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JOURNAL FREE ACCESS

2005 Volume 3 Pages 461-465

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Abstract

Angular dependence of ultraviolet photoelectron spectroscopy (UPS) has been discussed here by using a multiple-scattering theory and has been applied to some large organic molecules. Low kinetic energy electron (<∼50eV) relatively have long mean free path. Moreover the electron-atom scattering shows isotropic scattering features. In order to analyze the local electronic and geometric structure for thin film of large organic molecules by UPS, we should consider the multiple-scattering processes of the photoelectron. In this paper, convergence features of calculated spectra have been discussed by considering scattering order analysis for the calculation of UPS for large organic molecules. Because carbon atoms in organic molecules are weak scatterers, we can neglect high order intramolecular scattering processes. However, the theoretical calculations show that we need careful consideration for near the photoemission threshold energy and for the analysis of large molecule. [DOI: 10.1380/ejssnt.2005.461]

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この記事はクリエイティブ・コモンズ [表示 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by/4.0/deed.ja
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