Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1869434 | Physics Procedia | 2012 | 7 Pages |
Abstract
III-V compound nanowhiskers have attracted much attention recently due to their distinguished electronic and optical properties. In these nanostructures it was observed a phenomenon called polytypism, i. e., a phase alternation between zinc-blend and wurtzite structure. Although the polytypical effect is now well controlled, a more detailed band structure model is not still done, especially in the vicinity of the band edges. In this theoretical study we propose a model to calculate the electronic band structure in the vicinity of the band edges for polytypical nanowhiskers. Relying on group theory concepts and on the k p method we connected the irreducible representations at the Î-point of the two crystal structures and described them in a single matrix. Our results for InP show the carriers' spatial separation which agrees with reported experiments.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Physics and Astronomy (General)
Authors
Paulo Eduardo de Faria Junior, Guilherme Matos Sipahi,