Thermal population in asymmetric double wells coupled by hole mixing tunneling
โ Scribed by Changping Luo; Zhongying Xu; Desheng Jiang; Jizong Xu; Baozhen Zheng; Xiaoping Yang; Penghua Zhang
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 154 KB
- Volume
- 15
- Category
- Article
- ISSN
- 0749-6036
No coin nor oath required. For personal study only.
โฆ Synopsis
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 tunneling as well as by photon heating. The influences of the excitation intensity and lattice temperature on the tunneling transfer and thermal popilation are discussed.
๐ SIMILAR VOLUMES
We studied the wavefunctions and energy positions of the confined states in the valance band in an asymmetric double quantum well. We found these to be extremely sensitive to both the carrier density and the height of the confining barriers, which allows us to control the so-called 'Spin Dependent H