Exciton in 2D Cubic Inclusion in Hexagonal GaN |
| M. Suffczyński Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warsaw, Poland R. Stępniewski and J.M. Baranowski Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warsaw, Poland |
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| An inclusion of cubic GaN in an otherwise hexagonal matrix is considered to be equivalent to an effective quantum well. The exciton binding energy in a quantum well of a finite potential barrier height in the conduction and valence bands is calculated in the effective mass approximation with a variational envelope function type of Bastard and Takagahara. The exciton binding energy and the energy of exciton recombination line are computed, as a function of the well width, for realistic potential barrier heights and band-offset ratios. |
| DOI: 10.12693/APhysPolA.92.993 PACS numbers: 73.20.Dx, 78.66.-w, 61.72.Nn |