THREE-DIMENSIONAL MODEL FOR INTERDIFFUSED QUANTUM DOTS
| Autor: | Oki Gunawan, Boon S. Ooi, Hery S. Djie |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Materials science
Condensed matter physics Superlattice Bioengineering Heterojunction Electronic structure Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Computer Science::Other Computer Science Applications Condensed Matter::Soft Condensed Matter Condensed Matter::Materials Science symbols.namesake Reciprocal lattice Lattice constant Quantum dot symbols General Materials Science Electrical and Electronic Engineering Hamiltonian (quantum mechanics) Ground state Biotechnology |
| Zdroj: | International Journal of Nanoscience. :683-688 |
| ISSN: | 1793-5350 0219-581X |
| Popis: | We report the study of the interdiffusion effect of quantum-dot (QD) heterostructures, focusing on the theoretical calculation of the electronic structure of interdiffused QDs. A computational model has been developed for QD superlattice system using Hamiltonian in reciprocal space domain to analyze the interdiffusion effect on electronic structure. The interdiffusion effects of QDs with various geometries having the same volume and the same lattice constant have been studied. In general, the interdiffusion effect in QDs is significantly pronounced since it occurs in three dimensions. Comparing the interdiffusion effect for the various shapes of QDs, it was found that the spherical QD has the lowest ground state and produces the largest blue-shift during the interdiffusion or intermixing process. |
| Databáze: | OpenAIRE |
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