H2O adsorption on Ge(100): An angle-resolved photoelectron spectroscopy study
(1991) In Physical Review B (Condensed Matter and Materials Physics) 43(11). p.9281-9283- Abstract
- The adsorption of H2O on Ge(100)2×1 was studied with angle-resolved photoelectron spectroscopy. The surface was exposed to H2O at 160 K. The sample was then heated to 300 K where the measurements were performed. The surface band structure was mapped in the [010] direction. We find six bands that we assign to a surface-adsorbate structure. One band with binding energy in the region 4.6–4.9 eV is assigned to the Ge-H bond. Another band dispersing between 5.6 and 5.8 eV is assigned to the Ge-OH bond. The results agree with models where the H2O is adsorbed dissociatively across the Ge-Ge dimers as H and OH on this surface at 300 K. Bands assigned to the H and OH groups disperse in momentum-energy space and we conclude that there is some... (More)
- The adsorption of H2O on Ge(100)2×1 was studied with angle-resolved photoelectron spectroscopy. The surface was exposed to H2O at 160 K. The sample was then heated to 300 K where the measurements were performed. The surface band structure was mapped in the [010] direction. We find six bands that we assign to a surface-adsorbate structure. One band with binding energy in the region 4.6–4.9 eV is assigned to the Ge-H bond. Another band dispersing between 5.6 and 5.8 eV is assigned to the Ge-OH bond. The results agree with models where the H2O is adsorbed dissociatively across the Ge-Ge dimers as H and OH on this surface at 300 K. Bands assigned to the H and OH groups disperse in momentum-energy space and we conclude that there is some long-range ordering within the adsorbate layer. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/1056620
- author
- Larsson, Christer LU and Flodström, Anders
- organization
- publishing date
- 1991
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physical Review B (Condensed Matter and Materials Physics)
- volume
- 43
- issue
- 11
- pages
- 9281 - 9283
- publisher
- American Physical Society
- external identifiers
-
- scopus:0000107318
- ISSN
- 1098-0121
- DOI
- 10.1103/PhysRevB.43.9281
- language
- English
- LU publication?
- no
- id
- 78b4c0a5-80ae-4758-97b6-8f0d9ca85afd (old id 1056620)
- alternative location
- http://link.aps.org/abstract/PRB/v43/p9281
- date added to LUP
- 2016-04-01 15:17:30
- date last changed
- 2021-01-03 11:11:18
@article{78b4c0a5-80ae-4758-97b6-8f0d9ca85afd, abstract = {{The adsorption of H2O on Ge(100)2×1 was studied with angle-resolved photoelectron spectroscopy. The surface was exposed to H2O at 160 K. The sample was then heated to 300 K where the measurements were performed. The surface band structure was mapped in the [010] direction. We find six bands that we assign to a surface-adsorbate structure. One band with binding energy in the region 4.6–4.9 eV is assigned to the Ge-H bond. Another band dispersing between 5.6 and 5.8 eV is assigned to the Ge-OH bond. The results agree with models where the H2O is adsorbed dissociatively across the Ge-Ge dimers as H and OH on this surface at 300 K. Bands assigned to the H and OH groups disperse in momentum-energy space and we conclude that there is some long-range ordering within the adsorbate layer.}}, author = {{Larsson, Christer and Flodström, Anders}}, issn = {{1098-0121}}, language = {{eng}}, number = {{11}}, pages = {{9281--9283}}, publisher = {{American Physical Society}}, series = {{Physical Review B (Condensed Matter and Materials Physics)}}, title = {{H2O adsorption on Ge(100): An angle-resolved photoelectron spectroscopy study}}, url = {{http://dx.doi.org/10.1103/PhysRevB.43.9281}}, doi = {{10.1103/PhysRevB.43.9281}}, volume = {{43}}, year = {{1991}}, }