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半导体学报 2008
Bandgap Energies in Strain-Free Ga1-xInxNyAs-y/GaAs QWs After Annealing
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Abstract:
According to the annealing-induced changes of an N-centered nearest-neighbor (NN) environment in Ga1-xInxNyAs-y quaternary alloys,we present a statistical distributing model of the binary bonds in a thermodynamics equilibrium state.Then,the parameter r,the calculated number of NN In atoms per N atom,is introduced into the BAC empirical model.Finally,bandgap energies in strain-free Ga1-xInxNyAs-y/GaAs QWs are calculated by discussing the boundary conditions for the electron wavefunction in the BAC model.