Single-Molecule Mechanoresistivity by Intermetallic Bonding

被引:0
|
作者
Sil, Amit [1 ]
Spano, Chiara E. [1 ,2 ,3 ]
Chelli, Yahia [4 ]
Higgins, Simon J. [1 ]
Sangtarash, Sara [4 ]
Piccinini, Gianluca [2 ]
Graziano, Mariagrazia [2 ,5 ]
Nichols, Richard J. [1 ]
Sadeghi, Hatef [4 ]
Vezzoli, Andrea [1 ]
机构
[1] Univ Liverpool, Dept Chem, Crown St, Liverpool L69 7ZD, England
[2] Politecn Torino, Dept Elect & Telecommun, Corso Duca Abruzzi, I-10129 Turin, Italy
[3] Ist Nazl Ric Metrolog INRIM, Str Cacce 91, I-10135 Turin, Italy
[4] Univ Warwick, Sch Engn, Device Modelling Grp, Coventry CV4 7AL, England
[5] Politecn Torino, Dept Appl Sci & Technol, Corso Duca Abruzzi, I-10129 Turin, Italy
基金
英国工程与自然科学研究理事会;
关键词
Mechanoresistive Molecular Junctions; Molecular Electronics; Pt(II) Molecular Wires; Metal-Molecule Interfaces; Ion-Metal Interactions; CHARGE-TRANSPORT; CONDUCTANCE; WIRES;
D O I
10.1002/anie.202418062
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The metal-electrode interface is key to unlocking emergent behaviour in all organic electrified systems, from battery technology to molecular electronics. In the latter, interfacial engineering has enabled efficient transport, higher device stability, and novel functionality. Mechanoresistivity - the change in electrical behaviour in response to a mechanical stimulus and a pathway to extremely sensitive force sensors - is amongst the most studied phenomena in molecular electronics, and the molecule-electrode interface plays a pivotal role in its emergence, reproducibility, and magnitude. In this contribution, we show that organometallic molecular wires incorporating a Pt(II) cation show mechanoresistive behaviour of exceptional magnitude, with conductance modulations of more than three orders of magnitude upon compression by as little as 1 nm. We synthesised series of cyclometalated Pt(II) molecular wires, and used scanning tunnelling microscopy - break junction techniques to characterise their electromechanical behaviour. Mechanoresistivity arises from an interaction between the Pt(II) cation and the Au electrode triggered by mechanical compression of the single-molecule device, and theoretical modelling confirms this hypothesis. Our study provides a new tool for the design of functional molecular wires by exploiting previously unreported ion-metal interactions in single-molecule devices, and develops a new framework for the development of mechanoresistive molecular junctions.
引用
收藏
页数:7
相关论文
共 50 条
  • [41] Recent progress on single-molecule nanocatalysis based on single-molecule fluorescence microscopy
    Yuwei Zhang
    Tao Chen
    Ping Song
    Weilin Xu
    ScienceBulletin, 2017, 62 (04) : 290 - 301
  • [42] Recent progress on single-molecule nanocatalysis based on single-molecule fluorescence microscopy
    Zhang, Yuwei
    Chen, Tao
    Song, Ping
    Xu, Weilin
    SCIENCE BULLETIN, 2017, 62 (04) : 290 - 301
  • [43] Single-Molecule Study on Microrna Machineries: Micrornaprocessing With Immunoprecipitates At the Single-Molecule Level
    Yeom, Kyu-Hyeon
    Kim, V. Narry
    Joo, Chirlmin
    BIOPHYSICAL JOURNAL, 2010, 98 (03) : 75A - 75A
  • [44] SINGLE-MOLECULE SINGLE-CRYSTALS
    BU, HS
    PANG, YW
    SONG, DD
    YU, TY
    VOLL, TM
    CZORNYJ, G
    WUNDERLICH, B
    JOURNAL OF POLYMER SCIENCE PART B-POLYMER PHYSICS, 1991, 29 (02) : 139 - 152
  • [45] Designing a robust single-molecule switch A single-molecule switch works at room temperature
    Frisbie, C. Daniel
    SCIENCE, 2016, 352 (6292) : 1394 - 1395
  • [46] Development of Single-molecule Electrical Analysis for a High-throughput Single-molecule Sequencer
    Ohshiro, Takahito
    BUNSEKI KAGAKU, 2017, 66 (05) : 351 - 362
  • [47] Single-molecule charge transfer and bonding at an organic/inorganic interface: Tetracyanoethylene on noble metals
    Wegner, Daniel
    Yamachika, Ryan
    Wang, Yayu
    Brar, Victor W.
    Bartlett, Bart M.
    Long, Jeffrey R.
    Crommie, Michael F.
    NANO LETTERS, 2008, 8 (01) : 131 - 135
  • [48] Direct measurement and modulation of single-molecule coordinative bonding forces in a transition metal complex
    Xian Hao
    Nan Zhu
    Tina Gschneidtner
    Elvar Ö. Jonsson
    Jingdong Zhang
    Kasper Moth-Poulsen
    Hongda Wang
    Kristian S. Thygesen
    Karsten W. Jacobsen
    Jens Ulstrup
    Qijin Chi
    Nature Communications, 4
  • [49] Nanoscale local hydrogen-bonding sensing using single-molecule spectroscopic imaging
    Park, Hyunbum
    Kim, Doory
    SENSORS AND ACTUATORS B-CHEMICAL, 2022, 372
  • [50] Direct measurement and modulation of single-molecule coordinative bonding forces in a transition metal complex
    Hao, Xian
    Zhu, Nan
    Gschneidtner, Tina
    Jonsson, Elvar O.
    Zhang, Jingdong
    Moth-Poulsen, Kasper
    Wang, Hongda
    Thygesen, Kristian S.
    Jacobsen, Karsten W.
    Ulstrup, Jens
    Chi, Qijin
    NATURE COMMUNICATIONS, 2013, 4