Optical in situ monitoring of hydrogen desorption from Ge(100) surfaces

Barrigón Montañés, Enrique and Brückner, Sebastian and Supplie, Oliver and Kleinschmidt, Peter and Rey-Stolle Prado, Ignacio and Hannappel, Thomas (2013). Optical in situ monitoring of hydrogen desorption from Ge(100) surfaces. "Applied Physics Letters", v. 102 (n. 11); pp.. ISSN 0003-6951. https://doi.org/10.1063/1.4798248.

Description

Title: Optical in situ monitoring of hydrogen desorption from Ge(100) surfaces
Author/s:
  • Barrigón Montañés, Enrique
  • Brückner, Sebastian
  • Supplie, Oliver
  • Kleinschmidt, Peter
  • Rey-Stolle Prado, Ignacio
  • Hannappel, Thomas
Item Type: Article
Título de Revista/Publicación: Applied Physics Letters
Date: March 2013
ISSN: 0003-6951
Volume: 102
Subjects:
Faculty: Instituto de Energía Solar (IES) (UPM)
Department: Electrónica Física
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Molecular hydrogen strongly interacts with vicinal Ge(100) surfaces during preparation in a metal organic vapor phase epitaxy reactor. According to X-ray photoemission spectroscopy and Fourier-transform infrared spectroscopy results, we identify two characteristic reflection anisotropy (RA) spectra for H-free and monohydride-terminated vicinal Ge(100) surfaces. RAS allows in situ monitoring of the surface termination and enables spectroscopic hydrogen kinetic desorption studies on the Ge(100) surface. Comparison of evaluated values for the activation energy and the pre-exponential factor of H desorption evaluated at different photon energies reflects that H unevenly affects the shape of the RA spectrum.

More information

Item ID: 26299
DC Identifier: http://oa.upm.es/26299/
OAI Identifier: oai:oa.upm.es:26299
DOI: 10.1063/1.4798248
Official URL: http://scitation.aip.org/content/aip/journal/apl/102/11/10.1063/1.4798248
Deposited by: Memoria Investigacion
Deposited on: 25 May 2014 11:49
Last Modified: 22 Sep 2014 11:40
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