Optical absorption and positron annihilation in electron-irradiated GaAs
Journal Article
·
· Sov. Phys. - Semicond. (Engl. Transl.); (United States)
OSTI ID:5795122
The 2..gamma.. positron annihilation method was used to establish for the first time that deep-level defects in GaAs irradiated with 2 MeV electrons at Tapprox.300 /sup 0/K were of the vacancy type. The dominant defect was the vacancy v/sub Ga/, responsible for the absorption band at 1.0 eV. The sensitivity threshold was determined for the 2..gamma.. method when applied to GaAs irradiated with an electron dose of approx.7 x 10/sup 16/ cm/sup -2/.
- Research Organization:
- Scientific-Research Institute of Nuclear Physics at the S. M. Kirov Polytechnic Institute, Tomsk
- OSTI ID:
- 5795122
- Journal Information:
- Sov. Phys. - Semicond. (Engl. Transl.); (United States), Journal Name: Sov. Phys. - Semicond. (Engl. Transl.); (United States) Vol. 13:6; ISSN SPSEA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360605* -- Materials-- Radiation Effects
ABSORPTION SPECTRA
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
ARSENIC COMPOUNDS
ARSENIDES
BASIC INTERACTIONS
COLLISIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTROMAGNETIC INTERACTIONS
ELECTRON COLLISIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
FERMIONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INTERACTIONS
LEPTONS
MEDIUM TEMPERATURE
MEV RANGE
MEV RANGE 01-10
PHYSICAL RADIATION EFFECTS
PNICTIDES
POINT DEFECTS
POSITRONS
RADIATION EFFECTS
SPECTRA
VACANCIES
360605* -- Materials-- Radiation Effects
ABSORPTION SPECTRA
ANNIHILATION
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
ARSENIC COMPOUNDS
ARSENIDES
BASIC INTERACTIONS
COLLISIONS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
ELECTROMAGNETIC INTERACTIONS
ELECTRON COLLISIONS
ELEMENTARY PARTICLES
ENERGY LEVELS
ENERGY RANGE
FERMIONS
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INTERACTIONS
LEPTONS
MEDIUM TEMPERATURE
MEV RANGE
MEV RANGE 01-10
PHYSICAL RADIATION EFFECTS
PNICTIDES
POINT DEFECTS
POSITRONS
RADIATION EFFECTS
SPECTRA
VACANCIES