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Title: Giant optical bistable behavior using triple-barrier resonant-tunneling light-emitting-diodes
Authors: Van Hoof, Chris
Genoe, Jan
Raymond, S
Borghs, Gustaaf #
Issue Date: Oct-1993
Publisher: Amer inst physics
Series Title: Applied Physics Letters vol:63 issue:17 pages:2390-2392
Abstract: By achieving electrostatic feedback due to hole accumulation in an asymmetric triple-barrier resonant tunneling light-emitting diode, inverted bistability is obtained in the current-voltage characteristics. In the low current state, the resonant electron current is suppressed, resulting in the absence of quantum-well light emission. When switching to the high current state, the sudden increase in electron population causes a steplike increase in luminescence which yields an optical on-off ratio larger than 10(4):1. This improvement by a least a factor of 1000 with respect to the existing double-barrier resonant tunneling light-emitting diodes makes the new triple-barrier structure drastically more appealing for bistable switching applications.
URI: 
ISSN: 0003-6951
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Physics and Astronomy - miscellaneous
ESAT - MICAS, Microelectronics and Sensors
Electrical Engineering (ESAT) TC, Technology Campus Diepenbeek
Technologiecluster ESAT Elektrotechnische Engineering
# (joint) last author

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