A Single-Molecular AND Gate Operated with Two Orthogonal Switching Mechanisms

Advanced Materials
Na ZhangLuping Yu

Abstract

Single-molecular electronics is a potential solution to nanoscale electronic devices. While simple functional single-molecule devices such as diodes, switches, and wires are well studied, complex single-molecular systems with multiple functional units are rarely investigated. Here, a single-molecule AND logic gate is constructed from a proton-switchable edge-on gated pyridinoparacyclophane unit with a light-switchable diarylethene unit. The AND gate can be controlled orthogonally by light and protonation and produce desired electrical output at room temperature. The AND gate shows high conductivity when treated with UV light and in the neutral state, and low conductivity when treated either with visible light or acid. A conductance difference of 7.3 is observed for the switching from the highest conducting state to second-highest conducting state and a conductance ratio of 94 is observed between the most and least conducting states. The orthogonality of the two stimuli is further demonstrated by UV-vis, NMR, and density function theory calculations. This is a demonstration of concept of constructing a complex single-molecule electronic device from two coupled functional units.

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Citations

Mar 24, 2018·Nanoscale·Qingqing WuColin J Lambert
Aug 8, 2018·Chemistry : a European Journal·Mohammad Ahmad AwaisLuping Yu
Oct 26, 2018·Angewandte Chemie·Mariusz KownackiRobert Häner
Jan 29, 2019·Angewandte Chemie·Shuning CaiWenjing Hong
Jan 25, 2020·Advanced Materials·Alexis Goulet-HanssensStefan Hecht
Nov 2, 2019·Angewandte Chemie·Nathaniel CorriganCyrille Boyer
Aug 11, 2020·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Youngsang Kim
Apr 9, 2021·Inorganic Chemistry·Manisha KarmakarArunabha Thakur
Jul 25, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Kuo-Hui WuHiroshi Nishihara
Oct 2, 2021·Advanced Materials·Sheng-Yi YangShuit-Tong Lee
Jan 7, 2022·Physical Chemistry Chemical Physics : PCCP·Wenfei ZhangMinglang Wang

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