Surface Chemistry Controls Crystallinity of ZnS Nanoparticles
- 25 February 2006
- journal article
- research article
- Published by American Chemical Society (ACS) in Nano Letters
- Vol. 6 (4), 605-610
- https://doi.org/10.1021/nl052201c
Abstract
Combined small-angle and high energy wide-angle X-ray scattering measurements of nanoparticle size and structure permit interior strain and disorder to be observed directly in the real-space pair distribution function (PDF). PDF analysis showed that samples of ZnS nanoparticles with similar mean diameters (3.2−3.6 nm) but synthesized and treated with different low-temperature procedures possess a dramatic range of interior disorder. We used Fourier transform infrared spectroscopy to detect the surface species and the nature of surface chemical interactions. Our results suggest that there is a direct correlation between the strength of surface-ligand interactions and interior crystallinity.Keywords
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