Affiliation:
1. College of Chemistry and Molecular Sciences Wuhan University 299 Bayi Road Wuhan Hubei 430072 China
2. The Institute for Advanced Studies Wuhan University 299 Bayi Road Wuhan Hubei 430072 China
Abstract
AbstractIntermolecular charge transport is one of the essential modes for modulating charge transport in molecular electronic devices. Supermolecules are highly promising candidates for molecular devices because of their abundant structures and easy functionalization. Herein, we report an efficient strategy to enhance charge transport through pillar[5]arene self‐assembled monolayers (SAMs) by introducing cationic guests. The current density of pillar[5]arene SAMs can be raised up to about 2.1 orders of magnitude by inserting cationic molecules into the cavity of pillar[5]arenes in SAMs. Importantly, we have also observed a positive correlation between the charge transport of pillar[5]arene‐based complex SAMs and the binding affinities of the pillar[5]arene‐based complexation. Such an enhancement of charge transport is attributed to the efficient host–guest interactions that stabilize the supramolecular complexes and lower the energy gaps for charge transport. This work provides a predictive pattern for the regulation of intermolecular charge transport in guiding the design of next generation switches and functional sensors in supramolecular electronics.
Funder
National Natural Science Foundation of China
National Key Research and Development Program of China
Subject
General Chemistry,Catalysis
Cited by
2 articles.
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