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http://hdl.handle.net/11154/1410
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Title: | Bulk anisotropic excitons in type-II semiconductors built with 1D and 2D low-dimensional structures |
Authors: | Coyotecatl, HA del Castillo-Mussot, M Reyes, JA Vazquez, GJ Montemayor-Aldrete, JA Reyes-Esqueda, JA Cocoletzi, GH |
Issue Date: | 2005 |
Abstract: | We used a simple variational approach to account for the difference in the electron and hole effective masses in Wannier-Mott excitons in type-II semiconducting heterostructures in which the electron is constrained in an one-dimensional quantum wire (1DQW) and the hole is in a two-dimensional quantum layer (2DQL) perpendicular to the wire or viceversa. The resulting Schrodinger equation is similar to that of a 3D bulk exciton because the number of free (nonconfined) variables is three two coming from the 2DQL and one from the 1DQW. In this system the effective electron-hole interaction depends on the confinement potentials. |
URI: | http://hdl.handle.net/11154/1410 |
ISSN: | 0035-001X |
Appears in Collections: | Ciencias
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