Abstract
Mechanochemical synthesis of nanostructured PbTe, adding isopropyl alcohol during milling, is promoted by the presence of structural defects such as edge dislocations, amorphous zones, grain boundaries, among others. High-resolution transmission electron microscopy observations revealed that the nanostructured PbTe formation is fundamentally dependent upon crystalline imperfections during the high-energy milling process. Even though defect-dependent mechanisms rule the formation of nanostructured PbTe, oriented-attachment mechanism is also traced and contributes to the PbTe formation. Hence, experimentally, isopropyl alcohol is a key parameter for the mechanochemical synthesis of nanostructured PbTe.
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