The heterointerfaces of single quantum wells and the characteristics of single-quantum-well lasers on Si substrates grown with Al0.5Ga0.5As-Al0.55Ga0.45 P intermediate layers entirely by metalorganic chemical-vapor deposition are reported. The effects of thermal cycle annealing on the crystallinity and lasing characteristics of GaAs-Si are also reported. Thermal cycle annealing is found to improve the crystallinity of GaAs-Si, and to contribute to room-temperature continuous-wave operations of lasers on Si substrates. By using the Al0.5Ga 0.5As-Al0.55Ga0 intermediate layers, single quantum wells with a specular surface morphology and a smoother heterointerface can be grown on an Si substrate
Published in:
Quantum Electronics, IEEE Journal of
(Volume:27
,
Issue:
6
)
Date of Publication: Jun 1991