title: Substituent effects on charge transport in films of Au nanocrystals.
abstract: Charge transport (CT) in films of arylthiol-capped Au nanocrystals (NCs) exhibits strong substituent effects, with electron-donating substituents markedly decreasing conductivity. Films suited for measurements were obtained by ligand-exchange reactions on AuNCs grown at the water/toluene interface. Detailed analysis suggests the NCs interact with the ligands by resonance rather than inductive effects. The films were characterized by TEM, SEM, XPS, UV/vis, and AFM. CT characteristics were studied between 15 and 300 K.
authors: School of Chemistry, Oxford Road, The University of Manchester, Manchester M139PL, UK.
authors: Gemma L
authors: GL
authors: Stansfield
authors: P John
authors: PJ
authors: Thomas