Electron and hole tunneling transfer processes in asymmetric double quantum well structures are investigated by time-resolved picosecond photoluminescence. Change from nonresonant to resonant tunneling is achieved with a perpendicular electric field. Electron transfer times become considerably faste
Carrier nonresonant tunneling in asymmetric coupled double quantum wells
β Scribed by Shijie Xu; Desheng Jiang; Guohua Li; Jinsheng Luo
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 412 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0749-6036
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The thermal population in photocarrier systems coupled by hole mixing tunneling is studied by an analysis of the high energy tails in cw photoluminescence spectra of asymmetric coupled double wells. Photocarriers in wide well are heated due to hole transfer from the narrow well through resonant tunn
Vertically stacked quantum point contacts (QPCs) are prepared by atomic force microscope (AFM) lithography from an asymmetric GaAs/AlGaAs double quantum well (DQW) heterostructure. Top-and back-gate voltages are used to tune the tunnel-coupled QPCs, and back-gate bias cooling is employed to investig