Negative Differential Resistance and Hysteresis in Self‐Assembled Nanoscale Networks with Tunable Molecule‐to‐Nanoparticle Ratios,Physica Status Solidi (B) - Basic Solid State Physics

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Negative Differential Resistance and Hysteresis in Self‐Assembled Nanoscale Networks with Tunable Molecule‐to‐Nanoparticle Ratios
Physica Status Solidi (B) - Basic Solid State Physics ( IF 1.5 ) Pub Date : 2020-04-20 , DOI: 10.1002/pssb.202000019
Anusha Venkataraman ₁ , Eberechukwu V. Amadi ₁ , Tristan S. M. Zaborniak ₁ , Po Zhang ₁ , Chris Papadopoulos ₁

Affiliation

Electronic transport is investigated through self‐assembled benzenedithiol–gold nanoparticle networks with tunable molecule‐to‐particle ratios (1:5–50:1) deposited between planar electrodes. Two‐terminal current–voltage measurements of the networks display linear behavior at low bias, which is described using a circuit model that accounts for different network morphologies, tunable via molecule‐to‐nanoparticle ratio, and defects. At larger biases, nonlinear negative differential resistance and hysteresis behavior are observed for different molecular concentrations, which can be attributed to a combination of field‐assisted tunneling and charge trapping occurring in the nanoscale networks. The directed self‐assembly of benzenedithiol–metal nanoparticle molecular electronic networks is suggested for molecular integrated circuits in applications such as memory, switching, hardware security, and computing.

中文翻译：

分子与纳米粒子比例可调的自组装纳米尺度网络中的负微分电阻和磁滞

通过自组装的苯二硫醇-金纳米粒子网络对电子传输进行了研究，分子网络中沉积的分子与粒子之比（1：5-50：1）可调。网络的两端电流-电压测量结果显示出低偏置下的线性行为，这是使用考虑了不同网络形态，可通过分子与纳米粒子比例和缺陷进行调整的电路模型来描述的。在较大的偏压下，观察到不同分子浓度的非线性负微分电阻和磁滞行为，这可以归因于在纳米级网络中发生的场辅助隧穿和电荷陷阱的组合。

更新日期：2020-04-20

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