Sanakirja
Tekoälykääntäjä
Kuvat
7
| Kieli | Käännökset |
|---|---|
| italia | buca di potenziale |
| puola | studnia kwantowa |
| saksa | Quantentopf |
| suomi | kvanttikaivo |
Määritelmät
Substantiivi
- (quantum mechanics) a potential well that confines particles in one dimension, forcing them to occupy a planar region
Taivutusmuodot
| Monikko | quantum wells |
Luokat
(quantum mechanics) a potential well that confines particles in one dimension, forcing them to occupy a planar region
Schematic of a semiconductor heterostructure quantum well. The shaded (well) region should be narrow enough (L should be typically less than 30 nm) for quantum effects to be manifested, in particular, for a discrete energy spectrum of charge carriers to be sufficiently resolved at room temperature.
(quantum mechanics) a potential well that confines particles in one dimension, forcing them to occupy a planar region
A heterostructure made from semiconductors AlGaAs (large band-gap) and GaAs (smaller band-gap) in a quantum well configuration. In the central GaAs region of length d, the conduction band energy is lower, and the valence band energy is higher. Therefore both electrons and holes can be confined in the GaAs region.
(quantum mechanics) a potential well that confines particles in one dimension, forcing them to occupy a planar region
The band structure diagram in a quantum well of GaAs in between AlGaAs. An electron in the conduction band or a hole in the valence band can be confined in the potential well created in the structure. The available states in the wells are sketched in the figure. These are "particle-in-a-box-like" states.