The Temperature-Dependence of the Saturation Voltage for Molecular Assembly System with the Effect of the Intermolecular Spacing

Abstract

Numerical simulations have been performed to investigate the effect of the temperature on the electronic transport through a small group of molecular assembly system (MAS). The model involves two 1,4-dithiolbenzene (DTB) molecular units stacked in one dimension (1D). The currentvoltage (I-V) and the conductance voltage (G-V) analysis are presented under the influence of the temperature associated with the π-orbital coupling interactions controlled by the intermolecular spacingd. TheMASwith reduceddaffects significantly the conductance which results in reducing the conductance gap and the saturation voltageVsat. In addition, the present results show that the temperature rise effect plays an important role in determining the current flow in the saturation region. In this region, it is important to note thatVsatincreases linearly whenTgoes from 50 to 325 K.. To conclude,Vsatcan be controlled either by changing the temperature or modifying its intermolecular spacing conformation.