Optical properties of PbSe quantum dots embedded in oxide glass

The controlled synthesis of PbSe quantum dots in Se-doped glass matrix (SiO 2 -Na 2 CO 3 -Al 2 O 3 -PbO 2 -B 2 O 3 ) with narrow size distributions was achieved. Quantum dot size can be manipulated by tuning annealing time in the process of thermal treatment. The PbSe QD sizes estimated by 4 x 4 k p theory were in very good agreement with the measurements of atomic force microscopy.