Hierarchical assembly of ultranarrow alkylamine-coated ZnS nanorods: a synchrotron surface X-ray diffraction study

Nataly Belman; Somobrata Acharya; Oleg Konovalov; Alexei Vorobiev; Jacob Israelachvili; Shlomo Efrima; Yuval Golan

doi:10.1021/nl802287h

Hierarchical assembly of ultranarrow alkylamine-coated ZnS nanorods: a synchrotron surface X-ray diffraction study

Nano Lett. 2008 Nov;8(11):3858-64. doi: 10.1021/nl802287h. Epub 2008 Sep 30.

Authors

Nataly Belman¹, Somobrata Acharya, Oleg Konovalov, Alexei Vorobiev, Jacob Israelachvili, Shlomo Efrima, Yuval Golan

Affiliation

¹ Department of Materials Engineering, Ilse Katz Institute of Nanotechnology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel.

PMID: 18823147
DOI: 10.1021/nl802287h

Abstract

The packing of anisotropic ultranarrow nanoparticles ( r <or= 0.5 nm) in Langmuir films was investigated for two types of nanoparticles: short ZnS wires coated with tetradecylamine and ZnS rods coated with octadecylamine. In situ grazing incidence small-angle X-ray scattering (GISAXS) revealed the formation, even under zero pressure, of ordered superstructures on the water surface consisting of alternating nanoparticles. A hierarchical "packing model" is proposed, based on GISAXS, transmission electron microscopy, thermogravimetric analysis, and grazing incidence X-ray diffraction of pure surfactant Langmuir films.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.