Supported by the National Natural Science Foundation of China under Grant No 60567001, and the Cultivated Foundation for the 'Academic Cadreman of Yunnan University'
Five InAs/InxGa1-xAs quantum dots in a well (DWELL) with different indium concentration x are grown by solid source molecular beam epitaxy. The high quantum dot density is observed in the InAs/In0.3Ga0.7As DWELL. Th...