Type-IIInAsxSb1−x/InAsquantum dots for midinfrared applications: Effect of morphology and composition on electronic and optical properties
| Autor: | S. K. Haywood, S. I. Rybchenko, I. E. Itskevich, Gik Hong Yeap |
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| Rok vydání: | 2009 |
| Předmět: |
Physics
Morphology (linguistics) Condensed matter physics Quantum dot Computer Science::Computation and Language (Computational Linguistics and Natural Language and Speech Processing) Electronic structure Composition (combinatorics) Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Optical spectra Electronic Optical and Magnetic Materials |
| Zdroj: | Physical Review B. 79 |
| ISSN: | 1550-235X 1098-0121 |
| Popis: | InSb-based self-assembled quantum dots are very promising for the midinfrared $(3\char21{}5\text{ }\ensuremath{\mu}\text{m})$ optical range. We have analyzed the effect of geometry and composition on the electronic structure and optical spectra of ${\text{InAs}}_{x}{\text{Sb}}_{1\ensuremath{-}x}/\text{InAs}$ dots. The calculated transition energies agree well with the available experimental data. The results show that the geometry of the dot can be estimated from the optical spectra if the composition is known, and vice versa. |
| Databáze: | OpenAIRE |
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