Improving Gating Efficiency of Electron Transport through Redox‐Active Molecular Junctions with Conjugated Chains,ChemElectroChem

当前位置： X-MOL 学术 › ChemElectroChem › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Improving Gating Efficiency of Electron Transport through Redox‐Active Molecular Junctions with Conjugated Chains
ChemElectroChem ( IF 3.5 ) Pub Date : 2020-01-22 , DOI: 10.1002/celc.201902076
Fan Zhang ₁ , Xiao‐Hui Wu ₂ , Yi‐Fan Zhou ₁ , Ya‐Hao Wang ₁ , Xiao‐Shun Zhou ₁ , Yong Shao ₁ , Jian‐Feng Li ₃ , Shan Jin ₂ , Ju‐Fang Zheng ₁

Affiliation

Tuning the electron transport at the molecular scale is a key step in realizing functional electronic components for molecular electronics, and ongoing interest aims at achieving a higher modulation ratio for single‐molecular transistors. Here, a feasible strategy that connects the redox‐active moieties with conjugated chains is proposed to improve the electrochemical gating efficiency of molecular junctions in ionic liquid. Benefiting from the low energy barrier height between the Fermi level of the electrode and the frontier molecular orbitals, the conductance of C=C−Fc−Py is about one order of magnitude larger and the conductance on/off ratio shows 160 % improvement compared to that of C−C−Fc−Py at the equilibrium potential of Fc⁺/Fc. This work provides a new way to design high‐performance molecular devices.

中文翻译：

通过共轭链通过氧化还原活性分子连接提高电子传输的门控效率

在分子尺度上调节电子传输是实现分子电子学中功能性电子组件的关键步骤，并且人们持续关注的目标是为单分子晶体管实现更高的调制比。在此，提出了一种将氧化还原活性部分与共轭链连接的可行策略，以提高离子液体中分子结的电化学门控效率。得益于电极的费米能级与前沿分子轨道之间的低能垒高度，C = C-Fc-Py的电导率大约大一个数量级，并且电导通/截止比与电导率相比提高了160％那的C-C-FC-PY在Fc的平衡电位⁺/ Fc。这项工作为设计高性能分子器件提供了一种新方法。

更新日期：2020-01-23

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11