S. Fukatsu et al., IMPROVED LUMINESCENCE QUALITY WITH AN ASYMMETRIC CONFINEMENT POTENTIAL IN SI-BASED TYPE-II QUANTUM-WELLS GROWN ON A GRADED SIGE RELAXED BUFFER, Journal of vacuum science & technology. B, Microelectronics and nanometer structures processing, measurement and phenomena, 14(3), 1996, pp. 2387-2390
A new class of Si-based quantum confined geometry is demonstrated usin
g a combination of oppositely strained layers grown on a step-graded r
elaxed SiGe buffer. The role of heterointerfaces is revealed as the co
ntrolling mechanism of the exciton localization, which results in enha
nced no-phonon transition intensity. (C) 1996 American Vacuum Society.