Definition Of Quantum Well

Quantum well infrared photodetectors are also based on quantum wells and are used for infrared imaging.

Definition of quantum well. The smallest amount or unit of. Wikipedia lexilogos oxford cambridge chambers harrap wordreference collins lexibase dictionaries merriam webster. A quantum well is analagous and represents the same concept. Such as structure forms the conducting channel of a hemt and has interesting.

A quantum well is a potential well with only discrete energy values. Definition of quantum well. Quantum well kwän təm wel electronics a thin layer of material typically between 1 and 10 nanometers thick within which the potential energy of an electron is less than outside the layer so that the motion of the electron perpendicular to the layer is quantized. Quantum well noun a potential well in which electrons and holes are constrained to move in two dimensions only typically by sandwiching an atomic layer of a semiconductor between layers of a material with a wider band gap leading to a sharper density of states than in the bulk semiconductor.

Thin layers confining carriers in one dimension. Encyclopedia letter q quantum wells. By doping either the well itself or preferably the barrier of a quantum well with donor impurities a two dimensional electron gas 2deg may be formed. For example if the hole in the ground was 10 meters down then you would need an energy of your mass times the height of the well the gravitational acceleration constant 10 meters per second squared to rise vertically out of the well.

If one dimension of the material is reduced to nano range while the other two dimensions remain large then the material or structure is called quantum well quantum well is also called nanolayers. Photonic devices quantum optics. Search quantum well and thousands of other words in english definition and synonym dictionary from reverso. The smallest amount or unit of something especially energy.

Rüdiger paschotta a quantum well is a thin layer which can confine quasi particles typically electrons or holes in the dimension. 48 equivalently although the line width of the quantum well exciton is comparable to that of the bulk exciton the binding energy is larger and the peak is still well resolved from the onset of.