Title | Giant optical bistable behavior using triple-barrier resonant tunneling light-emitting diodes |
Publication Type | Journal Article |
Year of Publication | 1993 |
Authors | Van Hoof, C., Genoe J., Raymond S., and Borghs G. |
Journal | Applied Physics Letters |
Volume | 63 |
Issue | 17 |
Pagination | 2390 - 2392 |
Date Published | 1993 |
ISSN | 00036951 (ISSN) |
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 104:1. 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. |
URL | http://www.scopus.com/inward/record.url?eid=2-s2.0-11644253396&partnerID=40&md5=7236a2980383999a266e06e4a2012d5f |
DOI | 10.1063/1.110484 |