Supported by the National Natural Science Foundation of China under Grant Nos 10274946 and 60336010.
We have preformed systematical ab initio studies of the structural and electronic properties of short-period Si1-xⅣx/Si (x = 0.125, 0.25, 0.5, Ⅳ=Ge, Sn) superlattices (SLs) grown along the [001] direction on bul...
The investigation on optical properties of Si1-xGex/Si strained layer structures has been carried out actively in recent years. The photoluminescence has become a brisker subject in the studies of its various optical ...