Abstract
AbstractMonodispersed PbSe nanocubes were synthesized through a simple hydrothermal method by using Pb2+‐EDTA complex and Na2SeSO3. Composition and morphology of the samples were characterized by means of XRD, TEM and SEM. The gradually releasing of Pb2+ from Pb2+‐EDTA complex, and the adopting of PVP can adjust the growth rate in <100> and <111> directions of PbSe. Both Pb2+‐EDTA complex and PVP played important roles in the crystal growth of the monodispersed PbSe nanocubes. In addition, UV‐vis and photoluminescence properties were characterized. Eg of the PbSe nanocubes is 1.5 eV approximately, which is much larger than that of bulk PbSe. Under PL excitation at 406 nm, a red emission peak at 696 nm is observed, showing that the synthesized PbSe is luminescent nanomaterials. (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
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