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Electrochemical Control of Single-Molecule Conductance by FermiLevel Tuning and Conjugation Switchingстатья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 26 декабря 2017 г.
- Авторы: Baghernejad Masoud, Zhao Xiaotao, Ornso Kristian Baruel, Fueeg Michael, Moreno-Garcia Pavel, Rudnev Alexander V., Kaliginedi Veerabhadrarao, Vesztergom Soma, Huang Cancan, Hong Wenjing, Broekmann Peter, Wandlowski Thomas, Thygesen Kristian S., Bryce Martin R.
- Журнал: Journal of the American Chemical Society
- Том: 136
- Номер: 52
- Год издания: 2014
- Издательство: American Chemical Society
- Местоположение издательства: United States
- Первая страница: 17922
- Последняя страница: 17925
- DOI: 10.1021/ja510335z
- Аннотация: Controlling charge transport through a single molecule connected to metallic electrodes remains one of the most fundamental challenges of nanoelectronics. Here we use electrochemical gating to reversibly tune the conductance of two different organic molecules, both containing anthraquinone (AQ) centers, over >1 order of magnitude. For electrode potentials outside the redox-active region, the effect of the gate is simply to shift the molecular energy levels relative to the metal Fermi level. At the redox potential, the conductance changes abruptly as the AQ unit is oxidized/reduced with an accompanying change in the conjugation pattern between linear and cross conjugation. The most significant change in conductance is observed when the electron pathway connecting the two electrodes is via the AQ unit. This is consistent with the expected occurrence of destructive quantum interference in that case. The experimental results are supported by an excellent agreement with ab initio transport calculations.
- Добавил в систему: Руднев Александр Викторович