Sonochemical and microwave-assisted preparations of PbTe and PbSe. A comparative study

Sonochemical and microwave-assisted polyol reduction methods were used to p repare PbSe and PbTe. Products prepared by both methods were compared and a nalyzed by XRD, EDX, TEM, HR-TEM, elemental analysis, FT-IR, and thermal me thods (DSC and TGA). In both methods almost pure lead chalcogenide phases w ere prepared, which were almost free of carbon (<0.08%,), but the morpholog y of the resultant nanoparticles was entirely different. The mechanism of f ormation for the lead chalcogenide nanoparticles for both microwave and son ochemical reactions is discussed.