Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
68 (1996), S. 72-74
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We use excitonic electroabsorption field imaging to study the electric field distribution between coplanar gold Schottky contacts on semi-insulating photorefractive AlGaAs epilayers. The field imaging shows consistently large localized enhancements of the electric field adjacent to the anode, followed by a region of reduced field. Complex behavior occurs at the cathode, with high-field regions extending far from the contact. These inhomogeneous near-contact field profiles are determined by the superposition of both diffused and drifted charge which affect the performance of many optoelectronic devices that use planar contacts or striplines on semi-insulating substrates. © 1996 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.116761
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