Simple Cubic Super Crystals Containing PbTe Nanocubes and Their Core−Shell Building Blocks
Journal of the American Chemical Society2008Vol. 130(45), pp. 15203–15209
Citations Over TimeTop 10% of 2008 papers
Jun Zhang, Amar Kumbhar, Jibao He, Narayan Chandra Das, Kaikun Yang, Jianqing Wang, Howard Wang, Kevin L. Stokes, Jiye Fang
Abstract
We report a preparation of high-quality cubic PbTe nanocrystals and their assembly into both square-array, two-dimensional patterns and three-dimensional simple cubic super crystals. The influence of oleylamine in the nanocrystal synthesis and core-shell formation through an anion-exchange mechanism was also studied. The simple cubic super crystals together with two-dimensional assembly patterns containing PbTe nanocubes and their core-shell building blocks were examined using TEM, SEM, AFM, XRD, SAXS, and FTIR. Such super crystals consisting of cubic structural building blocks may allow engineering of more complex materials from which novel properties may emerge.
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