Current without bias and diode effect in shuttling transport of nanoshafts

TL;DR

This paper demonstrates bias-free charge transport and diode-like behavior in a chain of coupled nanoshafts, driven by thermal energy, revealing potential for nanoscale electronic components.

Contribution

It introduces a model showing bias-free current and diode effect in nanoshafts due to thermal activation, a novel mechanism for nanoscale charge transport.

Findings

Bias-free current appears above a thermal energy threshold.

Unidirectional charge transport acts as a natural diode.

Transport occurs without external bias at finite temperature.

Abstract

A row of parallely ordered and coupled molecular nanoshafts is shown to develop a shuttling transport of charges at finite temperature. The appearance of a cu rrent without applying an external bias voltage is reported as well as a natura l diode effect allowing unidirectional charge transport along one field directi on while blocking the opposite direction. The zero-bias voltage current appears above a threshold of initial thermal and/or dislocation energy.