期刊
CHEMISTRY OF MATERIALS
卷 16, 期 17, 页码 3318-3322出版社
AMER CHEMICAL SOC
DOI: 10.1021/cm049476y
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Spherical PbSe semiconductor nanocrystals with near-infrared absorption of 1100-2520 nm (corresponding to diameters of 3-13 nm) were synthesized in a noncoordinating solvent (1-octadecene). The as-prepared PbSe semiconductor nanocrystals have very narrow size distributions (sigma congruent to 5-7%) without any postsynthetic size selection. High-resolution transmission electron microscopy (TEM), electron diffraction, and X-ray diffraction show that the nanocrystalline particles are single domains of rock-salt PbSe. A water-soluble form of these materials was generated through simple surface treatments.
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