Electronic Resource
Woodbury, NY
:
American Institute of Physics (AIP)
Applied Physics Letters
51 (1987), S. 121-123
ISSN:
1077-3118
Source:
AIP Digital Archive
Topics:
Physics
Notes:
We report the largest peak-to-valley current (PVC) ratios to date from AlGaAs/GaAs double barrier (either alloy barrier or superlattice barrier) diodes. PVC ratios as high as 3.6 and 21.7 were obtained from an AlAs/GaAs superlattice barrier structure at 300 and 77 K, respectively. In an alloy barrier structure with x=0.42 (x=0.3), PVC ratios of 3.9 (2.2) and 14.3 (7.0) were observed at 300 and 77 K, respectively. We attribute these excellent results to a "two-step'' spacer layer incorporated in the devices studied which facilitated the growth of high material quality.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.98588
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