Electronic Transport in Metal Nanocrystal Arrays: The Effect of Structural Disorder on Scaling Behavior

نویسندگان

  • Raghuveer Parthasarathy
  • Xiao-Min Lin
  • Heinrich M. Jaeger
  • James Franck
چکیده

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 VT 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: I V 2 VT z , z 2.25 6 0.1. The latter show additional structure, reflecting the underlying disordered topology.

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تاریخ انتشار 2001