Type

Journal Article

Authors

Greg Hughes
Stephen McDonnell
R. M. Wallace
E. M. Vogel
C. L. Hinkle
M. Milojevic
F. S. Aguirre-Tostado

Subjects

Physics

Topics
surface cleaning carrier mobility stoichiometry gallium arsenide semiconductors iii v semiconductors x ray photoelectron spectra indium compounds reflection high energy electron diffraction

Indium stability on InGaAs during atomic H surface cleaning (2008)

Abstract Atomic H exposure of a GaAs surface at 390 °C is a relatively simple method for removing the native oxides without altering the surface stoichiometry. In-situ reflection high energy electron diffraction and angle-resolved x-ray photoelectron spectroscopy have been used to show that this procedure applied to In0.2Ga0.8As effectively removes the native oxides resulting in an atomically clean surface. However, the bulk InGaAs stoichiometry is not preserved from this treatment. The In:Ga ratio from the substrate is found to decrease by 33%. The implications for high-mobility channel applications are discussed as the carrier mobility increases nearly linearly with the In content.
Collections Ireland -> Dublin City University -> Publication Type = Article
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools
Ireland -> Dublin City University -> Status = Published
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Science and Health
Ireland -> Dublin City University -> Subject = Physical Sciences
Ireland -> Dublin City University -> DCU Faculties and Centres = DCU Faculties and Schools: Faculty of Science and Health: School of Physical Sciences
Ireland -> Dublin City University -> Subject = Physical Sciences: Semiconductors

Full list of authors on original publication

Greg Hughes, Stephen McDonnell, R. M. Wallace, E. M. Vogel, C. L. Hinkle, M. Milojevic, F. S. Aguirre-Tostado

Experts in our system

1
Greg Hughes
Dublin City University
Total Publications: 29
 
2
Stephen McDonnell
University College Cork
Total Publications: 8
 
3
Robert M. Wallace
University College Cork
Total Publications: 18
 
4
E. M. Vogel
University College Cork
Total Publications: 9
 
5
Christopher L. Hinkle
University College Cork
Total Publications: 13