Original scientific paper
Periodic semiconductor superlattices-some electrical, transport and optical properties
Dimitrije Tjapkin
; Faculty of Electrical Engineering, Bulevar Revolucije 13, 11000 Beograd, Yugoslavia
Vitomir Milanović
; High PTT School, Zdravka Čelara 16, 11000 Beograd, Yugoslavia
Zoran Ikonić
; Faculty of Electrical Engineering, Bulevar Revolucije 13, 11000 Beograd, Yugoslavia
Abstract
Most important results of our investigation of semiconductor superlattices (SL) are presented in this article. Special attention is devoted to the influence of spatial variation of effective mass on SL electronic structure. We have derived the dispersion relation for the case of band nonparabolicity in constituent materials of SL, and proved it to be spin-independent. The transport and optical properties we studied are: the Einstein relation, envelope matrix elements for transitions between conduction and valance subbands, light absorbtion and gain coefficients. We also present some numerical results for GaAs-Al2Ga1-xAs SL as an illustration for theoretical considerations.
Keywords
Hrčak ID:
329270
URI
Publication date:
7.1.1985.
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