Surface chemistry controls crystallinity of ZnS nanoparticles

Benjamin Gilbert, Feng Huang, Zhang Lin, Carmen Goodell, Hengzhong Zhang, Julian F. Banfield

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77 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)605-610
Number of pages6
JournalNano Letters
Issue number4
Publication statusPublished - Apr 2006
Externally publishedYes

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