Identification of residual donors in high-purity undoped p-type epitaxial GaAs by magnetophotoluminescence

Bose, S. S. ; Kim, M. H. ; Stillman, G. E.

Woodbury, NY : American Institute of Physics (AIP)
Published 1988
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The residual donor species, Si, S, and Ge, have been identified in high-purity undoped p-type epitaxial GaAs grown by metalorganic chemical vapor deposition and arsenic trichloride vapor phase techniques using the magnetic splittings of "two-electron'' replicas of donor bound exciton transitions at low temperature (∼1.8 K) and at a high magnetic field (9.0 T). This technique permits identification of donors in certain high-purity p-type GaAs samples in which donor species cannot be identified by photothermal ionization spectroscopy or any other technique.
Type of Medium:
Electronic Resource
URL: