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Spatially resolved electrical and spectroscopic studies around dislocations in GaAs single crystals.
- Source :
- Applied Physics Letters; 1984, Vol. 45 Issue 6, p643-645, 3p
- Publication Year :
- 1984
-
Abstract
- Spatially resolved electrical and spectroscopic behavior around isolated grown-in dislocation in p-type undoped GaAs crystals grown by liquid-encapsulated Czochralski technique is investigated. Surface spreading resistance is found to remarkably increase at about 100 μm in diameter around dislocations. In a corresponding area, photoluminescence intensity of the 1.49-eV and 1.44-eV acceptor level peaks decreases. However, that of 0.8-eV deep level peak does not vary. These results demonstrate that dislocations should give rise to carrier density variation due to the relative concentration change of levels around them. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00036951
- Volume :
- 45
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Applied Physics Letters
- Publication Type :
- Academic Journal
- Accession number :
- 71381304
- Full Text :
- https://doi.org/10.1063/1.95341