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Determination of the S–ZnO structural interaction in thiol-capped ZnO nanoparticles: a sulfur K-edge XAS study

DOI: 10.1088/1361-6528/aa5218 DOI Help

Authors: Clara Guglieri (Elettra Sincrotrone Trieste) , Giuliana Aquilanti (Elettra Sincrotrone Trieste) , Sofia Diaz-moreno (Diamond Light Source) , Jesus Chaboy (University of Zaragoza; Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Nanotechnology , VOL 28

State: Published (Approved)
Published: February 2017

Abstract: ZnO nanoparticles capped with thiol molecules display room temperature ferromagnetism which has been associated with the structural details of the interface formed between the organic molecule and the ZnO core. Although the local order around sulfur atoms at the ZnS/ZnO interface has been related to the occurrence of the ferromagnetic like behavior, no direct structural determination has been obtained yet. We report here a detailed x-ray absorption spectroscopy study performed at the sulfur K-edge to determine the local structure around the sulfur atoms in these systems and how it is modified by varying the length of the organic molecule.

Journal Keywords: ZnO; core–shell; nanoparticles; XAS

Subject Areas: Materials


Technical Areas: