Quantom well structure having enhanced conductivity

Details Quantom well structure having enhanced conductivity Quantom well structure having enhanced conductivity

1989-09-25

1991-05-14

Hille, Rolf

357 4, 357 61, H01L 29161, H01L 29205, H01L 2900, H01L 2712

Patent

active

050160648

ABSTRACT:
An enhanced conductivity superlattice made from semiconductor materials provides enhanced conductivity. It is believed that conductivity can be enhanced sufficiently to produce superconductivity well above typical superconductivity temperatures of the semiconductor materials. The enhanced conductivity quantum well is a superlattice structure having a monolayer phonon generator sandwiched between layers of a host material. Barrier layers surround the host material to confine the host material electrons. In another embodiment, the monolayer may be located within the barrier layers. The monolayer generates phonons having an optical energy which is lower than the optical energy of the host material. The generated phonons couple with low energy electrons or holes to propagate without dissipation of electron energy.

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"Solid State Physics", 5th Edition, C. Kittel, 1976, Wiley & Sons, pp. 112-113.
"Stimulated Emission in Ultrathin (20 .ANG.) Al.sub.x Ga.sub.1-x As-GaAs Single Quantum Well Hetero Structures", Lo et al, Appl. Phys. Lett., vol. 52, #22, 30 May 1988, pp. 1853-1855.

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