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Anomalous Transport in Quantum Dot Arrays
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TLDR
In this article, a stationary Levy process of transmission events was proposed to explain power law current transients and memory phenomena observed in partially ordered arrays of semiconducting nanocrystals.Abstract:
A novel model of transport is proposed to explain power law current transients and memory phenomena observed in partially ordered arrays of semiconducting nanocrystals. The model describes electron transport by a stationary Levy process of transmission events and thereby requires no time dependence of system properties. The waiting time distribution with a characteristic long tail gives rise to a nonstationary response in the presence of a voltage pulse. We report on noise measurements that agree well with the predicted non-Poissonian fluctuations in current, and discuss possible mechanisms leading to this behavior.read more
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Nanocrystal quantum dot memory devices
TL;DR: In this article, memory devices and recordable media are disclosed that take advantage of memory effects in the electronic transport in CdSe nanocrystal (NC) quantum dot arrays.