Abstract
Well defined tetrahedral cadmium sulfide nanocrystals were made in a rational way by organometallic chemical synthesis. Due to the fair degree of the ionic character in Cd—S bond, the sulfide S2− can be replaced by the organothiolate RS− without disrupting the CdS lattice structure. These ligands were delicately chosen to fabricate anisotropically capped nanocrystals. During solvent evaporation, these smart dots have the property to self-connect in a head-to-tail alignment leading to a new fibrous polymeric dot material. These quantum microcrystallites can be processed to make powder, free standing dots or optically transparent and anisotropic films. Optical spectroscopy, X-ray diffraction and electron microscopy have been used to characterize this organized quantum dot array.
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Chemseddine, A. Organized quantum dot array through nanochemistry. J Sol-Gel Sci Technol 2, 685–688 (1994). https://doi.org/10.1007/BF00486332
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DOI: https://doi.org/10.1007/BF00486332