Interband transitions of pseudomorphic GaN/Al x Ga 1-x N quantum wells are analysed theoretically with respect to the piezoelectric field utilizing a 6×6 Rashba-Sheka-Pikus (RSP) Hamiltonian. Band structure modifications due to the built-in Stark effect explain a shift of the emission peak in GaN/Al
Temperature dependence of excitonic transitions in AlxGa1 − xAs/GaAs quantum wells
✍ Scribed by S.A. Lourenço; I.F.L. Dias; J.L. Duarte; E. Laureto; H. Iwamoto; E.A. Meneses; J.R. Leite
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 132 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0749-6036
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✦ Synopsis
The temperature dependence of excitonic transitions in double quantum well heterostructures in the temperature range of 2-300 K were investigated. A crossing between excitonic transition experimental curves as a function of temperature in quantum wells of the same thickness and different barrier height is observed. The influence of the barrier height on the temperature dependence of excitonic states in the quantum wells is analyzed.
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