resonant tunneling diode
E708817
A resonant tunneling diode is a quantum-effect semiconductor device that exploits resonant tunneling through double potential barriers to achieve negative differential resistance and ultra-fast switching.
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
quantum-effect semiconductor device
ⓘ
tunneling diode ⓘ |
| basedOn | quantum mechanical tunneling ⓘ |
| belongsTo |
nanoelectronic devices
ⓘ
quantum transport devices ⓘ |
| contains |
quantum well
ⓘ
two potential barriers ⓘ |
| enables | ultra-fast switching ⓘ |
| exhibits | negative differential resistance ⓘ |
| exploits | resonant tunneling ⓘ |
| hasI-VCharacteristic | N-shaped ⓘ |
| hasKeyParameter |
barrier thickness
ⓘ
doping concentration ⓘ peak-to-valley current ratio ⓘ resonant energy level spacing ⓘ well width ⓘ |
| hasProperty |
bistability
ⓘ
high peak current density ⓘ hysteresis in I-V curve ⓘ room-temperature operation capability ⓘ very short switching time ⓘ |
| hasRegion |
collector
ⓘ
emitter ⓘ quantum well region ⓘ |
| implementedIn |
GaAs/AlGaAs heterostructures
ⓘ
III-V compound semiconductors ⓘ InGaAs/AlAs heterostructures ⓘ |
| isCharacterizedBy | double-barrier heterostructure ⓘ |
| isUsedFor |
compact microwave sources
ⓘ
monostable-bistable transition logic elements ⓘ nonlinear circuit elements ⓘ submillimeter-wave oscillators ⓘ ultra-high-speed analog-to-digital conversion ⓘ |
| operatesBy | alignment of quantized energy levels with Fermi level ⓘ |
| operatesThrough | double potential barriers ⓘ |
| requires |
epitaxial growth techniques
ⓘ
precise layer thickness control ⓘ |
| showsEffect |
current peak at resonance
ⓘ
current valley after resonance ⓘ |
| usedIn |
frequency multipliers
ⓘ
high-frequency circuits ⓘ high-speed digital circuits ⓘ high-speed oscillators ⓘ low-power logic circuits ⓘ microwave circuits ⓘ multi-valued logic circuits ⓘ terahertz devices ⓘ |
| wasIntensivelyStudiedIn | 1980s ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.