Electrical molecular switch addressed by chemical stimuli

被引：20

作者：

Audi, H. ^{[1
]}

Viero, Y. ^{[2
]}

Alwhaibi, N. ^{[3
]}

Chen, Z. ^{[1
]}

Iazykov, M. ^{[1
]}

Heynderickx, A. ^{[1
]}

Xiao, F. ^{[1
]}

Guerin, D. ^{[2
]}

Krzeminski, C. ^{[2
]}

Grace, I. M. ^{[3
]}

Lambert, C. J. ^{[3
]}

Siri, O. ^{[1
]}

Vuillaume, D. ^{[2
]}

Lenfant, S. ^{[2
]}

Klein, H. ^{[1
]}

机构：

[1] Aix Marseille Univ, Ctr Interdisciplinaire Nanosci Marseille CINaM, CNRS, Marseille, France

[2] Univ Lille, CNRS, IEMN, Ave Poincare, Villeneuve Dascq, France

[3] Univ Lancaster, Phys Dept, Lancaster LA1 4YB, England

来源：

NANOSCALE | 2020年 / 12卷 / 18期

基金：

英国工程与自然科学研究理事会;

关键词：

SELF-ASSEMBLED MONOLAYERS; SINGLE-MOLECULE; LARGE ARRAY; CONDUCTANCE; JUNCTIONS; PH; DIARYLETHENES; INVERSION; TRANSPORT; MECHANISM;

D O I：

10.1039/d0nr02461a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We demonstrate that the conductance switching of benzo-bis(imidazole) molecules upon protonation depends on the lateral functional groups. The protonated H-substituted molecule shows a higher conductance than the neutral one (G(pro) > G(neu)), while the opposite (G(neu) > G(pro)) is observed for a molecule laterally functionalized by amino-phenyl groups. These results are demonstrated at various scale lengths: self-assembled monolayers, tiny nanodot-molecule junctions and single molecules. From ab initio theoretical calculations, we conclude that for the H-substituted molecule, the result G(pro) > G(neu) is correctly explained by a reduction of the LUMO-HOMO gap, while for the amino-phenyl functionnalized molecule, the result G(neu) > G(pro) is consistent with a shift of the HOMO, which reduces the density of states at the Fermi energy.

引用

页码：10127 / 10139

页数：13

共 75 条

[1] In-Place Modulation of Rectification in Tunneling Junctions Comprising Self-Assembled Monolayers [J].

Ai, Yong ;

Kovalchuk, Andrii ;

Qiu, Xinkai ;

Zhang, Yanxi ;

Kumar, Sumit ;

Wang, Xintai ;

Kuhnel, Martin ;

Norgaard, Kasper ;

Chiechi, Ryan C. .

NANO LETTERS, 2018, 18 (12) :7552-7559

[2] Statistical evidence of strain induced breaking of metallic point contacts [J].

Alwan, Monzer ;

Candoni, Nadine ;

Dumas, Philippe ;

Klein, Hubert R. .

EUROPEAN PHYSICAL JOURNAL B, 2013, 86 (06)

[3] Extendable nickel complex tapes that reach NIR absorptions [J].

Audi, Hassib ;

Chen, Zhongrui ;

Charaf-Eddin, Azzam ;

D'Aleo, Anthony ;

Canard, Gabriel ;

Jacquemin, Denis ;

Siri, Olivier .

CHEMICAL COMMUNICATIONS, 2014, 50 (96) :15140-15143

[4] STM observation of a single diarylethene flickering [J].

Battaglini, N. ;

Klein, H. ;

Hortholary, C. ;

Coudret, C. ;

Maurel, F. ;

Dumas, Ph. .

ULTRAMICROSCOPY, 2007, 107 (10-11) :958-962

[5] DENSITY-FUNCTIONAL THERMOCHEMISTRY .3. THE ROLE OF EXACT EXCHANGE [J].

BECKE, AD .

JOURNAL OF CHEMICAL PHYSICS, 1993, 98 (07) :5648-5652

[6] Light-induced molecular motion of azobenzene-containing molecules: a random-walk model [J].

Bellini, B. ;

Ackermann, J. ;

Klein, H. ;

Grave, Ch ;

Dumas, Ph ;

Safarov, V. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2006, 18 (33) :S1817-S1835

[7] Dual Control of Molecular Conductance through pH and Potential in Single-Molecule Devices [J].

Brooke, Richard J. ;

Szumski, Doug S. ;

Vezzoli, Andrea ;

Higgins, Simon J. ;

Nichols, Richard J. ;

Schwarzacher, Walther .

NANO LETTERS, 2018, 18 (02) :1317-1322

[8] Zinc(II) Coordination Frameworks Based on Benzobisimidazole: The Role of the Methyl Substituent [J].

Bunzen, Hana ;

Mahmood, Farah ;

Grzywa, Maciej ;

Volkmer, Dirk .

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2017, (45) :5395-5402

[9] Simulating proteins at constant pH:: An approach combining molecular dynamics and Monte Carlo simulation [J].

Bürgi, R ;

Kollman, PA ;

van Gunsteren, WF .

PROTEINS-STRUCTURE FUNCTION AND BIOINFORMATICS, 2002, 47 (04) :469-480

[10] Effect of anchoring groups on single-molecule conductance: Comparative study of thiol-, amine-, and carboxylic-acid-terminated molecules [J].

Chen, Fang ;

Li, Xiulan ;

Hihath, Joshua ;

Huang, Zhifeng ;

Tao, Nongjian .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (49) :15874-15881

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