Abstract
We investigate the impact of structural disorder on electronic transport in gold nanocrystal monolayers. Arrays ranging from void-filled networks to well-ordered superlattices show clear voltage thresholds due to Coulomb blockade, and temperature-independent conduction indicative of quantum tunneling. Current-voltage characteristics of arrays with and without long-range structural order were found to collapse onto distinct scaling curves. The former follow a single power law: , . The latter show additional structure, reflecting the underlying disordered topology.
- Received 21 February 2001
DOI:https://doi.org/10.1103/PhysRevLett.87.186807
©2001 American Physical Society