1
|
Qu K, Pan ZY, Wang JY, Zhang B, Zeng H, Sang YF, Zhang QC, Chen ZN. Removing the Destructive Quantum Interference in Cross Conjugation System by Structural Restraint. Chem Res Chin Univ 2022. [DOI: 10.1007/s40242-022-2136-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
2
|
Giguère A, Ernzerhof M. Extending the source-sink potential method to include electron-nucleus coupling. J Chem Phys 2021; 155:014110. [PMID: 34241400 DOI: 10.1063/5.0056336] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
The source-sink potential (SSP) method provides a simple tool for the qualitative analysis of the conductance of molecular electronic devices, and often analytical expressions for the conductance can be obtained. Here, we extend the SSP approach to account for decoherent, inelastic electron transport by including the non-adiabatic coupling between the electrons and the nuclei in the molecule. This coupling results in contributions to electron transport that can modify the qualitative structure-conductance relationships that we unraveled previously with SSP. In the approach proposed, electron-nucleus interactions are treated starting from the harmonic approximation for the nuclei, using a non-perturbative approach to account for the non-adiabatic coupling. Our method qualitatively describes experimentally observed phenomena and allows for a simple analysis that often provides analytical formulas in terms of the physical parameters of the junction, e.g., vibrational energies, non-adiabatic coupling, and molecule-contact coupling.
Collapse
Affiliation(s)
- Alexandre Giguère
- Département de Chimie, Université de Montréal, C.P. 6128 Succursale A, Montréal, Québec H3C 3J7, Canada
| | - Matthias Ernzerhof
- Département de Chimie, Université de Montréal, C.P. 6128 Succursale A, Montréal, Québec H3C 3J7, Canada
| |
Collapse
|
3
|
Carlotti M, Soni S, Qiu X, Sauter E, Zharnikov M, Chiechi RC. Systematic experimental study of quantum interference effects in anthraquinoid molecular wires. NANOSCALE ADVANCES 2019; 1:2018-2028. [PMID: 31304460 PMCID: PMC6592160 DOI: 10.1039/c8na00223a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 02/07/2019] [Indexed: 05/17/2023]
Abstract
In order to translate molecular properties in molecular-electronic devices, it is necessary to create design principles that can be used to achieve better structure-function control oriented toward device fabrication. In molecular tunneling junctions, cross-conjugation tends to give rise to destructive quantum interference effects that can be tuned by changing the electronic properties of the molecules. We performed a systematic study of the tunneling charge-transport properties of a series of compounds characterized by an identical cross-conjugated anthraquinoid molecular skeleton but bearing different substituents at the 9 and 10 positions that affect the energies and localization of their frontier orbitals. We compared the experimental results across three different experimental platforms in both single-molecule and large-area junctions and found a general agreement. Combined with theoretical models, these results separate the intrinsic properties of the molecules from platform-specific effects. This work is a step towards explicit synthetic control over tunneling charge transport targeted at specific functionality in (proto-)devices.
Collapse
Affiliation(s)
- Marco Carlotti
- Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands .
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Saurabh Soni
- Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands .
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Xinkai Qiu
- Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands .
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Eric Sauter
- Applied Physical Chemistry , Heidelberg University , Im Neuenheier Feld 253 , Heidelberg 69120 , Germany
| | - Michael Zharnikov
- Applied Physical Chemistry , Heidelberg University , Im Neuenheier Feld 253 , Heidelberg 69120 , Germany
| | - Ryan C Chiechi
- Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands .
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| |
Collapse
|
4
|
Tsuji Y, Yoshizawa K. Effects of electron-phonon coupling on quantum interference in polyenes. J Chem Phys 2018; 149:134115. [DOI: 10.1063/1.5048955] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- Yuta Tsuji
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering and IRCCS, Kyushu University, Nishi-ku, Fukuoka 819-0395, Japan
| |
Collapse
|
5
|
Zhang Y, Ye G, Soni S, Qiu X, Krijger TL, Jonkman HT, Carlotti M, Sauter E, Zharnikov M, Chiechi RC. Controlling destructive quantum interference in tunneling junctions comprising self-assembled monolayers via bond topology and functional groups. Chem Sci 2018; 9:4414-4423. [PMID: 29896382 PMCID: PMC5961448 DOI: 10.1039/c8sc00165k] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Accepted: 04/22/2018] [Indexed: 01/25/2023] Open
Abstract
Quantum interference effects (QI) are of interest in nano-scale devices based on molecular tunneling junctions because they can affect conductance exponentially through minor structural changes. However, their utilization requires the prediction and deterministic control over the position and magnitude of QI features, which remains a significant challenge. In this context, we designed and synthesized three benzodithiophenes based molecular wires; one linearly-conjugated, one cross-conjugated and one cross-conjugated quinone. Using eutectic Ga-In (EGaIn) and CP-AFM, we compared them to a well-known anthraquinone in molecular junctions comprising self-assembled monolayers (SAMs). By combining density functional theory and transition voltage spectroscopy, we show that the presence of an interference feature and its position can be controlled independently by manipulating bond topology and electronegativity. This is the first study to separate these two parameters experimentally, demonstrating that the conductance of a tunneling junction depends on the position and depth of a QI feature, both of which can be controlled synthetically.
Collapse
Affiliation(s)
- Yanxi Zhang
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands . .,Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Gang Ye
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands . .,Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Saurabh Soni
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands . .,Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Xinkai Qiu
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands . .,Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Theodorus L Krijger
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands . .,Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Harry T Jonkman
- Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Marco Carlotti
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands . .,Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| | - Eric Sauter
- Applied Physical Chemistry , Heidelberg University , Im Neuenheier Feld 253 , Heidelberg 69120 , Germany
| | - Michael Zharnikov
- Applied Physical Chemistry , Heidelberg University , Im Neuenheier Feld 253 , Heidelberg 69120 , Germany
| | - Ryan C Chiechi
- Stratingh Institute for Chemistry , University of Groningen , Nijenborgh 4 , 9747 AG Groningen , The Netherlands . .,Zernike Institute for Advanced Materials , Nijenborgh 4 , 9747 AG Groningen , The Netherlands
| |
Collapse
|
6
|
Sýkora R, Novotný T. Graph-theoretical evaluation of the inelastic propensity rules for molecules with destructive quantum interference. J Chem Phys 2017; 146:174114. [DOI: 10.1063/1.4981916] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
|
7
|
Affiliation(s)
- Tim Hansen
- Nano-Science Center and Department of Chemistry, The University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Gemma C. Solomon
- Nano-Science Center and Department of Chemistry, The University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| | - Thorsten Hansen
- Nano-Science Center and Department of Chemistry, The University of Copenhagen, Universitetsparken 5, 2100 Copenhagen, Denmark
| |
Collapse
|
8
|
Carlotti M, Kovalchuk A, Wächter T, Qiu X, Zharnikov M, Chiechi RC. Conformation-driven quantum interference effects mediated by through-space conjugation in self-assembled monolayers. Nat Commun 2016; 7:13904. [PMID: 27996036 PMCID: PMC5187444 DOI: 10.1038/ncomms13904] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Accepted: 11/10/2016] [Indexed: 11/09/2022] Open
Abstract
Tunnelling currents through tunnelling junctions comprising molecules with cross-conjugation are markedly lower than for their linearly conjugated analogues. This effect has been shown experimentally and theoretically to arise from destructive quantum interference, which is understood to be an intrinsic, electronic property of molecules. Here we show experimental evidence of conformation-driven interference effects by examining through-space conjugation in which π-conjugated fragments are arranged face-on or edge-on in sufficiently close proximity to interact through space. Observing these effects in the latter requires trapping molecules in a non-equilibrium conformation closely resembling the X-ray crystal structure, which we accomplish using self-assembled monolayers to construct bottom-up, large-area tunnelling junctions. In contrast, interference effects are completely absent in zero-bias simulations on the equilibrium, gas-phase conformation, establishing through-space conjugation as both of fundamental interest and as a potential tool for tuning tunnelling charge-transport in large-area, solid-state molecular-electronic devices.
Collapse
Affiliation(s)
- Marco Carlotti
- Stratingh Institute for Chemistry &Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
| | - Andrii Kovalchuk
- Stratingh Institute for Chemistry &Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
| | - Tobias Wächter
- Applied Physical Chemistry, Heidelberg University, Im Neuenheimer Feld 253, Heidelberg 69120, Germany
| | - Xinkai Qiu
- Stratingh Institute for Chemistry &Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
| | - Michael Zharnikov
- Applied Physical Chemistry, Heidelberg University, Im Neuenheimer Feld 253, Heidelberg 69120, Germany
| | - Ryan C Chiechi
- Stratingh Institute for Chemistry &Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, Groningen 9747 AG, The Netherlands
| |
Collapse
|
9
|
Lykkebo J, Romano G, Gagliardi A, Pecchia A, Solomon GC. Single-molecule electronics: Cooling individual vibrational modes by the tunneling current. J Chem Phys 2016; 144:114310. [DOI: 10.1063/1.4943578] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Affiliation(s)
- Jacob Lykkebo
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| | - Giuseppe Romano
- Department of Mechanical Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA
| | - Alessio Gagliardi
- Technische Universität München, Electrical Engineering and Information Technology, Arcisstr. 21, 80333 München, Germany
| | - Alessandro Pecchia
- Consiglio Nazionale delle Ricerche, ISMN, Via Salaria Km 29.6, 00017 Monterotondo, Rome, Italy
| | - Gemma C. Solomon
- Nano-Science Center and Department of Chemistry, University of Copenhagen, Universitetsparken 5, 2100 Copenhagen Ø, Denmark
| |
Collapse
|
10
|
Reuter MG, Hansen T. Communication: Finding destructive interference features in molecular transport junctions. J Chem Phys 2014; 141:181103. [DOI: 10.1063/1.4901722] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Matthew G. Reuter
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, USA
| | - Thorsten Hansen
- Department of Chemistry, H. C. Ørsted Institute, University of Copenhagen, DK 2100 Copenhagen, Denmark
| |
Collapse
|