Nanocrystal Superlattice Embedded within an Inorganic Semiconducting Matrix by in Situ Ligand Exchange: Fabrication and Morphology

The authors carry out ligand exchange reaction replacing bulky insulating org. ligands with inorg. chalcogenidometallate clusters in nanocrystal assemblies floating at the gas-liq. interface. The mobility of the nanocrystals allows lattice contraction without significantly diminishing the ordering obsd. by grazing incidence X-ray scattering and transmission electron microscopy (TEM). This approach produces inorg. nanocomposite films one to a few nanocrystals in thickness with highly regular arrangements of nanocrystals. Anal. of free-standing nanocrystal membranes by low-dose, aberration-cor. TEM allows direct visualization of the nanocrystal-matrix interface.


Published in:
Chemistry of Materials, 27, 8, 2755–2758
Year:
2015
ISSN:
0897-4756
Keywords:
Laboratories:




 Record created 2016-12-22, last modified 2018-03-17


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