title: Surface chemistry controls crystallinity of ZnS nanoparticles.
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.
authors.affiliation: Department of Earth and Planetary Sciences, University of California, Berkeley, California 94720, USA. bgilbert@lbl.gov
authors.forename: Benjamin
authors.initials: B
authors.lastname: Gilbert
authors.forename: Feng
authors.initials: F
authors.lastname: Huang
authors.forename: Zhang
authors.initials: Z
authors.lastname: Lin
authors.forename: Carmen
authors.initials: C
authors.lastname: Goodell
authors.forename: Hengzhong
authors.initials: H
authors.lastname: Zhang
authors.forename: Jillian F
authors.initials: JF
authors.lastname: Banfield
mesh_terms: D003460:Crystallization / Q000379:methods*; D008422:Materials Testing; D008968:Molecular Conformation; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods*; D010316:Particle Size; D013440:Sulfides / Q000032:analysis / Q000737:chemistry*; D013499:Surface Properties; D017967:Zinc Compounds / Q000032:analysis / Q000737:chemistry*
chemical_list: D013440:Sulfides; D017967:Zinc Compounds; C031238:zinc sulfide