Y. Seko et al., OPTICAL-TRANSITION ENERGIES OF GAINP QUANTUM-WELLS WITH GAINP ALINP SUPERLATTICE BARRIERS/, Journal of applied physics, 76(2), 1994, pp. 1355-1357
A systematic study on the optical transition energies of GaInP quantum
wells with GaInP/AlInP superlattice barriers was carried out. It was
found that the commonly used simple approach to regard the short-perio
d superlattice barrier as a bulk barrier with a height of its miniband
edge brought about a substantial error in calculating the quantized l
evels in these structures. Instead, it was revealed that an excellent
agreement between theory and experiment can be obtained when the wave
function of each layer in the superlattice barriers is exactly calcula
ted, demonstrating the validity of the effective-mass approximation fo
r the quantum-well structures with superlattice barriers.