Air-stable Cl-terminated Ge(111)

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DOIResolve DOI: http://doi.org/10.1063/1.116386
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TypeArticle
Journal titleApplied Physics Letters
Volume68
Issue4
Pages520522; # of pages: 3
SubjectCHEMICAL BONDS; CHEMICAL PROPERTIES; CHLORINATION; ETCHING; GERMANIUM; PHASE STABILITY; PHOTOELECTRON SPECTROSCOPY; SURFACE COATING; SURFACE TREATMENTS; XANES
AbstractIt is shown that an air-stable Ge(111) surface can be made by wet chemical HCl treatment in ambient atmosphere. X-ray photoelectron spectroscopy (XPS) and photon electrical field polarization-dependent Cl K-edge x-ray absorption spectroscopy (XANES) were used to study the chemical structure and the physical orientation of chemisorbed Cl. It is found that Cl forms a monovalent bond with the Ge(111) dangling bond (DB) along <111> surface normal. The stability of HCl-treated Ge(111) is attributed to the surface DBs being terminated by monochloride. Thermodynamics are found to be the governing force in the Ge舑HCl reaction processes.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada; NRC Institute for Microstructural Sciences
Peer reviewedNo
NPARC number12333597
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Record identifier43b64e6c-7514-45c4-83ee-45f20de898f3
Record created2009-09-10
Record modified2016-05-09
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