1
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Gorenskaia E, Potter J, Korb M, Lambert C, Low PJ. Exploring relationships between chemical structure and molecular conductance: from α,ω-functionalised oligoynes to molecular circuits. NANOSCALE 2023. [PMID: 37070423 DOI: 10.1039/d3nr01034a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
The quantum circuit rule (QCR) allows estimation of the conductance of molecular junctions, electrode|X-bridge-Y|electrode, by considering the molecule as a series of independent scattering regions associated with the anchor groups (X, Y) and bridge, provided the numerical parameters that characterise the anchor groups (aX, aY) and molecular backbones (bB) are known. Single-molecule conductance measurements made with a series of α,ω-substituted oligoynes (X-{(CC)N}-X, N = 1, 2, 3, 4), functionalised by terminal groups, X (4-thioanisole (C6H4SMe), 5-(3,3-dimethyl-2,3-dihydrobenzo[b]thiophene) (DMBT), 4-aniline (C6H4NH2), 4-pyridine (Py), capable of serving as 'anchor groups' to contact the oligoyne fragment within a molecular junction, have shown the expected exponential dependence of molecular conductance, G, with the number of alkyne repeating units. In turn, this allows estimation of the anchor (ai) and backbone (bi) parameters. Using these values, together with previously determined parameters for other molecular fragments, the QCR is found to accurately estimate the junction conductance of more complex molecular circuits formed from smaller components assembled in series.
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Affiliation(s)
- Elena Gorenskaia
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6026, Australia.
| | - Jarred Potter
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6026, Australia.
| | - Marcus Korb
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6026, Australia.
| | - Colin Lambert
- Department of Physics, University of Lancaster, Lancaster LA1 4YB, England, UK.
| | - Paul J Low
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia, 6026, Australia.
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2
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Zang Y, Fu T, Zou Q, Ng F, Li H, Steigerwald ML, Nuckolls C, Venkataraman L. Cumulene Wires Display Increasing Conductance with Increasing Length. NANO LETTERS 2020; 20:8415-8419. [PMID: 33095021 DOI: 10.1021/acs.nanolett.0c03794] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
One-dimensional sp-hybridized carbon wires, including cumulenes and polyynes, can be regarded as finite versions of carbynes. They are likely to be good candidates for molecular-scale conducting wires as they are predicted to have a high-conductance. In this study, we first characterize the single-molecule conductance of a series of cumulenes and polyynes with a backbone ranging in length from 4 to 8 carbon atoms, including [7]cumulene, the longest cumulenic carbon wire studied to date for molecular electronics. We observe different length dependence of conductance when comparing these two forms of carbon wires. Polyynes exhibit conductance decays with increasing molecular length, while cumulenes show a conductance increase with increasing molecular length. Their distinct conducting behaviors are attributed to their different bond length alternation, which is supported by theoretical calculations. This study confirms the long-standing theoretical predictions on sp-hybridized carbon wires and demonstrates that cumulenes can form highly conducting molecular wires.
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Affiliation(s)
- Yaping Zang
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
| | - Tianren Fu
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Qi Zou
- Department of Chemistry, Columbia University, New York, New York 10027, United States
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China
| | - Fay Ng
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Hexing Li
- Shanghai Key Laboratory of Materials Protection and Advanced Materials in Electric Power, Shanghai University of Electric Power, Shanghai 200090, China
| | - Michael L Steigerwald
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Colin Nuckolls
- Department of Chemistry, Columbia University, New York, New York 10027, United States
| | - Latha Venkataraman
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York 10027, United States
- Department of Chemistry, Columbia University, New York, New York 10027, United States
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3
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Shao C, Rui C, Liu J, Chen A, Zhu K, Shao Q. First-Principles Study on the Electronic Transport Properties of B/P, B/As, and B/Sb Co-doped Single-Walled Carbon Nanotubes. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c03804] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cheng Shao
- Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou 510006, China
| | - Chenkang Rui
- Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
| | - Jiaxu Liu
- Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
| | - Aqing Chen
- College of Materials & Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
| | - Kaigui Zhu
- Department of Physics, Beihang University, Beijing 100191, China
| | - Qingyi Shao
- Guangdong Provincial Engineering Technology Research Center of Efficient Green Energy and Environmental Protection Materials, School of Physics and Telecommunication Engineering, South China Normal University, Guangzhou 510006, China
- Guangdong Provincial Key Laboratory of Nuclear Science, Institute of Quantum Matter, South China Normal University, Guangzhou 510006, China
- School of Science, Jiangnan University, Wuxi, Jiangsu 214122, China
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4
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Length-Dependent Electronic Transport Properties of the ZnO Nanorod. MICROMACHINES 2018; 10:mi10010026. [PMID: 30602715 PMCID: PMC6357090 DOI: 10.3390/mi10010026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 12/20/2018] [Accepted: 12/27/2018] [Indexed: 11/17/2022]
Abstract
The two-probe device of nanorod-coupled gold electrodes is constructed based on the triangular zinc oxide (ZnO) nanorod. The length-dependent electronic transport properties of the ZnO nanorod was studied by density functional theory (DFT) with the non-equilibrium Green's function (NEGF). Our results show that the current of devices decreases with increasing length of the ZnO nanorod at the same bias voltage. Metal-like behavior for the short nanorod was observed under small bias voltage due to the interface state between gold and the ZnO nanorod. However, the influence of the interface on the device was negligible under the condition that the length of the ZnO nanorod increases. Moreover, the rectification behavior was observed for the longer ZnO nanorod, which was analyzed from the transmission spectra and molecular-projected self-consistent Hamiltonian (MPSH) states. Our results indicate that the ZnO nanorod would have potential applications in electronic-integrated devices.
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5
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Moneo A, González-Orive A, Bock S, Fenero M, Herrer IL, Milan DC, Lorenzoni M, Nichols RJ, Cea P, Perez-Murano F, Low PJ, Martin S. Towards molecular electronic devices based on 'all-carbon' wires. NANOSCALE 2018; 10:14128-14138. [PMID: 29999063 DOI: 10.1039/c8nr02347f] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Nascent molecular electronic devices based on linear 'all-carbon' wires attached to gold electrodes through robust and reliable C-Au contacts are prepared via efficient in situ sequential cleavage of trimethylsilyl end groups from an oligoyne, Me3Si-(C[triple bond, length as m-dash]C)4-SiMe3 (1). In the first stage of the fabrication process, removal of one trimethylsilyl (TMS) group in the presence of a gold substrate, which ultimately serves as the bottom electrode, using a stoichiometric fluoride-driven process gives a highly-ordered monolayer, Au|C[triple bond, length as m-dash]CC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CSiMe3 (Au|C8SiMe3). In the second stage, treatment of Au|C8SiMe3 with excess fluoride results in removal of the remaining TMS protecting group to give a modified monolayer Au|C[triple bond, length as m-dash]CC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CH (Au|C8H). The reactive terminal C[triple bond, length as m-dash]C-H moiety in Au|C8H can be modified by 'click' reactions with (azidomethyl)ferrocene (N3CH2Fc) to introduce a redox probe, to give Au|C6C2N3HCH2Fc. Alternatively, incubation of the modified gold substrate supported monolayer Au|C8H in a solution of gold nanoparticles (GNPs), results in covalent attachment of GNPs on top of the film via a second alkynyl carbon-Au σ-bond, to give structures Au|C8|GNP in which the monolayer of linear, 'all-carbon' C8 chains is sandwiched between two macroscopic gold contacts. The covalent carbon-surface bond as well as the covalent attachment of the metal particles to the monolayer by cleavage of the alkyne C-H bond is confirmed by surface-enhanced Raman scattering (SERS). The integrity of the carbon chain in both Au|C6C2N3HCH2Fc systems and after formation of the gold top-contact electrode in Au|C8|GNP is demonstrated through electrochemical methods. The electrical properties of these nascent metal-monolayer-metal devices Au|C8|GNP featuring 'all-carbon' molecular wires were characterised by sigmoidal I-V curves, indicative of well-behaved junctions free of short circuits.
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Affiliation(s)
- Andrea Moneo
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009, Spain.
| | - Alejandro González-Orive
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009, Spain. and Instituto de Nanociencia de Aragón (INA) and Laboratorio de Microscopías Avanzadas (LMA), edificio i+d Campus Rio Ebro, Universidad de Zaragoza, C/Mariano Esquillor, s/n, 50018 Zaragoza, Spain
| | - Sören Bock
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Marta Fenero
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009, Spain. and Instituto de Nanociencia de Aragón (INA) and Laboratorio de Microscopías Avanzadas (LMA), edificio i+d Campus Rio Ebro, Universidad de Zaragoza, C/Mariano Esquillor, s/n, 50018 Zaragoza, Spain
| | - I Lucía Herrer
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009, Spain. and Instituto de Nanociencia de Aragón (INA) and Laboratorio de Microscopías Avanzadas (LMA), edificio i+d Campus Rio Ebro, Universidad de Zaragoza, C/Mariano Esquillor, s/n, 50018 Zaragoza, Spain
| | - David C Milan
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
| | - Matteo Lorenzoni
- Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - Richard J Nichols
- Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, UK
| | - Pilar Cea
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009, Spain. and Instituto de Nanociencia de Aragón (INA) and Laboratorio de Microscopías Avanzadas (LMA), edificio i+d Campus Rio Ebro, Universidad de Zaragoza, C/Mariano Esquillor, s/n, 50018 Zaragoza, Spain
| | - Francesc Perez-Murano
- Instituto de Microelectrónica de Barcelona (IMB-CNM, CSIC), Campus UAB, 08193 Bellaterra, Spain
| | - Paul J Low
- School of Molecular Sciences, University of Western Australia, 35 Stirling Highway, Crawley, WA 6009, Australia
| | - Santiago Martin
- Departamento de Química Física, Facultad de Ciencias, Universidad de Zaragoza, 50009, Spain. and Instituto de Ciencias de Materiales de Aragón (ICMA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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6
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Wu Q, Sadeghi H, García-Suárez VM, Ferrer J, Lambert CJ. Thermoelectricity in vertical graphene-C 60-graphene architectures. Sci Rep 2017; 7:11680. [PMID: 28916809 PMCID: PMC5601468 DOI: 10.1038/s41598-017-10938-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 08/16/2017] [Indexed: 11/23/2022] Open
Abstract
Recent studies of single-molecule thermoelectricity have identified families of high-performance molecules. However, in order to translate this discovery into practical thin-film energy-harvesting devices, there is a need for an understanding of the fundamental issues arising when such junctions are placed in parallel. This is relevant because controlled scalability might be used to boost electrical and thermoelectric performance over the current single-junction paradigm. As a first step in this direction, we investigate here the properties of two C60 molecules placed in parallel and sandwiched between top and bottom graphene electrodes. In contrast with classical conductors, we find that increasing the number of parallel junctions from one to two can cause the electrical conductance to increase by more than a factor of 2. Furthermore, we show that the Seebeck coefficient is sensitive to the number of parallel molecules sandwiched between the electrodes, whereas classically it should be unchanged. This non-classical behaviour of the electrical conductance and Seebeck coefficient are due to inter-junction quantum interference, mediated by the electrodes, which leads to an enhanced response in these vertical molecular devices.
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Affiliation(s)
- Qingqing Wu
- Quantum Technology Centre, Lancaster University, LA1 4YB, Lancaster, United Kingdom
| | - Hatef Sadeghi
- Quantum Technology Centre, Lancaster University, LA1 4YB, Lancaster, United Kingdom.
| | - Víctor M García-Suárez
- Departamento de Física, Universidad de Oviedo, 33007, Oviedo, Spain.,Nanomaterials and Nanotechnology Research Center (CSIC-Universidad de Oviedo), El Entrego, 33940, Asturias, Spain
| | - Jaime Ferrer
- Departamento de Física, Universidad de Oviedo, 33007, Oviedo, Spain. .,Nanomaterials and Nanotechnology Research Center (CSIC-Universidad de Oviedo), El Entrego, 33940, Asturias, Spain.
| | - Colin J Lambert
- Quantum Technology Centre, Lancaster University, LA1 4YB, Lancaster, United Kingdom.
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7
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Sadeghi H, Sangtarash S, Lambert C. Robust Molecular Anchoring to Graphene Electrodes. NANO LETTERS 2017; 17:4611-4618. [PMID: 28700831 DOI: 10.1021/acs.nanolett.7b01001] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Recent advances in the engineering of picoscale gaps between electroburnt graphene electrodes provide new opportunities for studying electron transport through electrostatically gated single molecules. But first we need to understand and develop strategies for anchoring single molecules to such electrodes. Here, for the first time we present a systematic theoretical study of transport properties using four different modes of anchoring zinc-porphyrin monomer, dimer, and trimer molecular wires to graphene electrodes. These involve either amine anchor groups, covalent C-C bonds to the edges of the graphene, or coupling via π-π stacking of planar polyaromatic hydrocarbons formed from pyrene or tetrabenzofluorene (TBF). π-π stacked pyrene anchors are particularly stable, which may be advantageous for forming robust single-molecule transistors. Despite their planar, multiatom coupling to the electrodes, pyrene anchors can exhibit both destructive interference and different degrees of constructive interference, depending on their connectivity to the porphyrin wire, which makes them attractive also for thermoelectricity. TBF anchors are more weakly coupled to both the graphene and the porphyrin wires and induce negative differential conductance at finite source-drain voltages. Furthermore, although direct C-C covalent bonding to the edges of graphene electrodes yields the highest electrical conductance, electron transport is significantly affected by the shape and size of the graphene electrodes because the local density of states at the carbon atoms connecting the electrode edges to the molecule is sensitive to the electrode surface shape. This sensitivity suggests that direct C-C bonding may be the most desirable for sensing applications. The ordering of the low-bias electrical conductances with different anchors is as follows: direct C-C coupling > π-π stacking with the pyrene anchors > direct coupling via amine anchors > π-π stacking with TBF anchors. Despite this dependency of conductances on the mode of anchoring, the decay of conductance with the length of the zinc-porphyrin wires is relatively insensitive with the associated attenuation factor β lying between 0.9 and 0.11 Å-1.
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Affiliation(s)
- Hatef Sadeghi
- Quantum Technology Centre, Department of Physics, Lancaster University , Lancaster LA1 4YB, United Kingdom
| | - Sara Sangtarash
- Quantum Technology Centre, Department of Physics, Lancaster University , Lancaster LA1 4YB, United Kingdom
| | - Colin Lambert
- Quantum Technology Centre, Department of Physics, Lancaster University , Lancaster LA1 4YB, United Kingdom
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8
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Milan DC, Krempe M, Ismael AK, Movsisyan LD, Franz M, Grace I, Brooke RJ, Schwarzacher W, Higgins SJ, Anderson HL, Lambert CJ, Tykwinski RR, Nichols RJ. The single-molecule electrical conductance of a rotaxane-hexayne supramolecular assembly. NANOSCALE 2017; 9:355-361. [PMID: 27924336 DOI: 10.1039/c6nr06355a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Oligoynes are archetypical molecular wires due to their 1-D chain of conjugated carbon atoms and ability to transmit charge over long distances by coherent tunneling. However, the stability of the oligoyne can be an issue. Here we address this problem by two stabilization methods, namely sterically shielding endgroups, and rotaxination to produce an insulated molecular wire. We demonstrate the threading of a hexayne within a macrocycle to form a rotaxane and report measurements of the electrical conductance of this single supramolecular assembly within an STM break junction. The macrocycle is retained around the hexayne through the use of 3,5-diphenylpyridine stoppers at both ends of the molecular wire, which also serve as chemisorption contacts to the gold electrodes of the junction. Molecular conductance was measured for both the supramolecular assembly and also for the molecular wire in the absence of the macrocycle. The threaded macrocycle, which at room temperature is mobile along the length of the hexayne between the stoppers, has only a minimal impact on the conductance. However, the probability of molecular junction formation in a given break junction formation cycle is notably lower with the rotaxane. In seeking to understand the conductance behavior, the electronic properties of these molecular assemblies and the electrical behavior of the junctions have been investigated by using DFT-based computational methods.
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Affiliation(s)
- David C Milan
- Department of Chemistry, University of Liverpool, Crown St, Liverpool, L69 7ZD, UK.
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9
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Xie F, Fan ZQ, Zhang XJ, Liu JP, Wang HY, Long MQ. Tunable negative differential resistance in a single cruciform diamine molecule with zigzag graphene nanoribbon electrodes. RSC Adv 2016. [DOI: 10.1039/c6ra19001d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
We investigate the electronic transport properties of a single cruciform diamine molecule connected to zigzag graphene nanoribbon electrodes by using the non-equilibrium Green's function formalism with density functional theory.
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Affiliation(s)
- Fang Xie
- Physics Science and Engineering Technology College
- Yichun University
- Yichun 336000
- People's Republic of China
| | - Zhi-Qiang Fan
- School of Physics and Electronic Science
- Changsha University of Science and Technology
- Changsha 410114
- People's Republic of China
| | - Xiao-Jiao Zhang
- Physics Science and Engineering Technology College
- Yichun University
- Yichun 336000
- People's Republic of China
| | - Jian-Ping Liu
- Physics Science and Engineering Technology College
- Yichun University
- Yichun 336000
- People's Republic of China
| | - Hai-Yan Wang
- Physics Science and Engineering Technology College
- Yichun University
- Yichun 336000
- People's Republic of China
| | - Meng-Qiu Long
- School of Physics and Electronics
- Central South University
- Changsha 410083
- China
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10
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Bonardi P, Achilli S, Tantardini GF, Martinazzo R. Electron transport in carbon wires in contact with Ag electrodes: a detailed first principles investigation. Phys Chem Chem Phys 2015; 17:18413-25. [PMID: 26106869 DOI: 10.1039/c5cp02796a] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The structure and electronic properties of carbon atom chains Cn in contact with Ag electrodes are investigated in detail with first principles means.
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Affiliation(s)
- Paolo Bonardi
- Universitá degli Studi di Milano
- Dipartimento di Chimica
- 20133 Milano
- Italy
| | - Simona Achilli
- Universitá degli Studi di Milano
- Dipartimento di Chimica
- 20133 Milano
- Italy
- Consiglio Nazionale delle Ricerche
| | - Gian Franco Tantardini
- Universitá degli Studi di Milano
- Dipartimento di Chimica
- 20133 Milano
- Italy
- Consiglio Nazionale delle Ricerche
| | - Rocco Martinazzo
- Universitá degli Studi di Milano
- Dipartimento di Chimica
- 20133 Milano
- Italy
- Consiglio Nazionale delle Ricerche
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11
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12
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Al-Backri A, Zólyomi V, Lambert CJ. Electronic properties of linear carbon chains: Resolving the controversy. J Chem Phys 2014; 140:104306. [DOI: 10.1063/1.4867635] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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13
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Gulcur M, Moreno-García P, Zhao X, Baghernejad M, Batsanov AS, Hong W, Bryce MR, Wandlowski T. The Synthesis of Functionalised Diaryltetraynes and Their Transport Properties in Single-Molecule Junctions. Chemistry 2014; 20:4653-60. [DOI: 10.1002/chem.201304671] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 01/15/2014] [Indexed: 11/11/2022]
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14
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Wu QQ, Zheng XH, Shi XQ, Lan J, Hao H, Zeng Z. Electron transport enhanced by electrode surface reconstruction: a case study of C60-based molecular junctions. RSC Adv 2014. [DOI: 10.1039/c4ra07900k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
At the C60–Cu(111) interface, electrode surface reconstruction (Rec) increases electrical current compared to that for the unreconstructed (Unrec) surface.
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Affiliation(s)
- Q. Q. Wu
- School of Physics and Material Science
- Anhui University
- Hefei 230601, China
- Key Laboratory of Materials Physics
- Institute of Solid State Physics
| | - X. H. Zheng
- Key Laboratory of Materials Physics
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031, China
| | - X. Q. Shi
- Key Laboratory of Materials Physics
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031, China
- Department of Physics
| | - J. Lan
- Key Laboratory of Materials Physics
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031, China
| | - H. Hao
- Key Laboratory of Materials Physics
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031, China
| | - Z. Zeng
- Key Laboratory of Materials Physics
- Institute of Solid State Physics
- Chinese Academy of Sciences
- Hefei 230031, China
- Department of Physics
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15
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Sadek M, Wierzbowska M, Rode MF, Sobolewski AL. Multipeak negative differential resistance from interplay between nonlinear stark effect and double-branch current flow. RSC Adv 2014. [DOI: 10.1039/c4ra10720a] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Multipeak negative differential resistance (NDR) molecular devices are designed from first principles.
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Affiliation(s)
- Mikołaj Sadek
- Institut of Physics
- Polish Academy of Science (PAS)
- 02-668 Warszawa, Poland
| | | | - Michał F. Rode
- Institut of Physics
- Polish Academy of Science (PAS)
- 02-668 Warszawa, Poland
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16
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Moreno-García P, Gulcur M, Manrique DZ, Pope T, Hong W, Kaliginedi V, Huang C, Batsanov AS, Bryce MR, Lambert C, Wandlowski T. Single-Molecule Conductance of Functionalized Oligoynes: Length Dependence and Junction Evolution. J Am Chem Soc 2013; 135:12228-40. [DOI: 10.1021/ja4015293] [Citation(s) in RCA: 241] [Impact Index Per Article: 21.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pavel Moreno-García
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
- Instituto de Física, Benemérita Universidad Autónoma de Puebla, Apartado Postal J-48, Puebla
72570, México
| | - Murat Gulcur
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| | | | - Thomas Pope
- Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Wenjing Hong
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
| | - Veerabhadrarao Kaliginedi
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
| | - Cancan Huang
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
| | - Andrei S. Batsanov
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| | - Martin R. Bryce
- Department of Chemistry, Durham University, Durham DH1 3LE, United Kingdom
| | - Colin Lambert
- Department of Physics, Lancaster University, Lancaster LA1 4YB, United Kingdom
| | - Thomas Wandlowski
- Department of Chemistry and
Biochemistry, University of Bern, Freiestrasse
3, CH-3012, Bern, Switzerland
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17
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Fan J, Gathitu NN, Chang Y, Zhang J. Effect of length on the position of negative differential resistance and realization of multifunction in fused oligothiophenes based molecular device. J Chem Phys 2013; 138:074307. [DOI: 10.1063/1.4790805] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
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Wen HM, Yang Y, Zhou XS, Liu JY, Zhang DB, Chen ZB, Wang JY, Chen ZN, Tian ZQ. Electrical conductance study on 1,3-butadiyne-linked dinuclear ruthenium(ii) complexes within single molecule break junctions. Chem Sci 2013. [DOI: 10.1039/c3sc50312g] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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19
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Wan H, Xu Y, Zhou G. Dual conductance, negative differential resistance, and rectifying behavior in a molecular device modulated by side groups. J Chem Phys 2012; 136:184704. [PMID: 22583306 DOI: 10.1063/1.4712615] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
We investigate the electronic transport properties for a molecular device model constructed by a phenylene ethynylene oligomer molecular with different side groups embedding in a carbon chain between two graphene electrodes. Using the first-principles method, the unusual dual conductance, negative differential resistance (NDR) behavior with large peak to valley ratio, and obvious rectifying performance are numerically observed in such proposed molecular device. The analysis of the molecular projected self-consistent Hamiltonian and the evolution of the frontier molecular orbitals (MOs) as well as transmission coefficients under various external voltage biases gives an inside view of the observed results, which suggests that the dual conductance behavior and rectifying performance are due to the asymmetry distribution of the frontier MOs as well as the corresponding coupling between the molecule and electrodes. But the NDR behavior comes from the conduction orbital being suppressed at certain bias. Interestingly, the conduction properties can be tuned by introducing side groups to the molecule and the rectification as well as the NDR behavior (peak to valley ratio) can be improved by adding different side groups in the device model.
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Affiliation(s)
- Haiqing Wan
- Department of Physics and Key Laboratory for Low-Dimensional Quantum Structures and Manipulation (Ministry of Education), Hunan Normal University, Changsha 410081, China
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20
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Qiu M, Liew KM. Position effects of single vacancy on transport properties of single layer armchair h-BNC heterostructure. Phys Chem Chem Phys 2012; 14:11478-83. [PMID: 22805975 DOI: 10.1039/c2cp41210a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Based on certain single layer armchair h-BNC heterostructures, six molecular devices with different positions of single vacancy atoms are investigated to explain the modulating process of negative differential resistance (NDR) behaviors and rectifying performance. The results show that NDR behaviors can be observed clearly with vacancy atoms near the interface of graphene nano-ribbon and BN nano-ribbon, and rectifying performance can be enhanced obviously when there are vacancy atoms in the moiety of the BN nano-ribbon. The first-principles analysis of the microscopic nature reveals that strength of electronic transmission, evolutions of molecular orbitals and distributions of molecular states are the intrinsic responses to these transport properties.
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Affiliation(s)
- Ming Qiu
- Department of Civil and Architectural Engineering, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong
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21
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Dral PO, Clark T. Semiempirical UNO–CAS and UNO–CI: Method and Applications in Nanoelectronics. J Phys Chem A 2011; 115:11303-12. [DOI: 10.1021/jp204939x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Pavlo O. Dral
- Computer-Chemie-Centrum and Interdisciplinary Center for Molecular Materials, Department of Chemie und Pharmazie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstr. 25, 91052 Erlangen, Germany
| | - Timothy Clark
- Computer-Chemie-Centrum and Interdisciplinary Center for Molecular Materials, Department of Chemie und Pharmazie, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nägelsbachstr. 25, 91052 Erlangen, Germany
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22
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Chen G, Mahmud I, Dawe LN, Daniels LM, Zhao Y. Synthesis and Properties of Conjugated Oligoyne-Centered π-Extended Tetrathiafulvalene Analogues and Related Macromolecular Systems. J Org Chem 2011; 76:2701-15. [DOI: 10.1021/jo2000447] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guang Chen
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, Newfoundland A1B 3X7, Canada
| | - Ilias Mahmud
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, Newfoundland A1B 3X7, Canada
| | - Louise N. Dawe
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, Newfoundland A1B 3X7, Canada
| | - Lee M. Daniels
- Rigaku Americas Corporation, 9009 New Trails Drive, The Woodlands, Texas 77381, United States
| | - Yuming Zhao
- Department of Chemistry, Memorial University of Newfoundland, St. John’s, Newfoundland A1B 3X7, Canada
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23
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Ie Y, Hirose T, Nakamura H, Kiguchi M, Takagi N, Kawai M, Aso Y. Nature of Electron Transport by Pyridine-Based Tripodal Anchors: Potential for Robust and Conductive Single-Molecule Junctions with Gold Electrodes. J Am Chem Soc 2011; 133:3014-22. [DOI: 10.1021/ja109577f] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yutaka Ie
- The Institute of Scientific
and Industrial Research (ISIR), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- PRESTO-JST, 4-1-8, Honcho, Kawaguchi, Saitama 333-0012, Japan
| | - Tomoya Hirose
- The Institute of Scientific
and Industrial Research (ISIR), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Hisao Nakamura
- Nanosystem Research Institute (NRI)
“RICS”, National Institute of Advanced Industrial Science and Technology (AIST), Central 2,
Umezono 1-1-1, Tsukuba, Ibaraki 305-8568, Japan
| | - Manabu Kiguchi
- Department of Chemistry, Graduate
School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 W4-10, Ookayama, Meguro-ku, Tokyo
152-8551, Japan
| | - Noriaki Takagi
- Department of Advanced Materials
Science, The University of Tokyo, Kashiwa,
Chiba 277-8561, Japan
| | - Maki Kawai
- Department of Advanced Materials
Science, The University of Tokyo, Kashiwa,
Chiba 277-8561, Japan
- Surface Chemistry Laboratory, RIKEN, Wako, Saitama 351-0198, Japan
| | - Yoshio Aso
- The Institute of Scientific
and Industrial Research (ISIR), Osaka University, 8-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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24
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Georgiev VP, McGrady JE. Efficient Spin Filtering through Cobalt-Based Extended Metal Atom Chains. Inorg Chem 2010; 49:5591-7. [DOI: 10.1021/ic100493t] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vihar P. Georgiev
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, United Kingdom
| | - John E. McGrady
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford, OX1 3QR, United Kingdom
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25
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Deng X, Zhang Z, Zhou J, Qiu M, Tang G. Length and end group dependence of the electronic transport properties in carbon atomic molecular wires. J Chem Phys 2010; 132:124107. [DOI: 10.1063/1.3363894] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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26
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García-Fuente A, Vega A, García-Suárez VM, Ferrer J. Impact of dimerization and stretching on the transport properties of molybdenum atomic wires. NANOTECHNOLOGY 2010; 21:095205. [PMID: 20130348 DOI: 10.1088/0957-4484/21/9/095205] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
We study the electrical and transport properties of monatomic Mo wires with different structural characteristics. We consider first periodic wires with interatomic distances ranging between the dimerized wire to that formed by equidistant atoms. We find that the dimerized case has a gap in the electronic structure which makes it insulating, as opposed to the equidistant or near-equidistant cases which are metallic. We also simulate two conducting one-dimensional Mo electrodes separated by a scattering region which contains a number of dimers between 1 and 6. The I-V characteristics strongly depend on the number of dimers and vary from ohmic to tunneling, with the presence of different gaps. We also find that stretched chains are ferromagnetic.
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Affiliation(s)
- A García-Fuente
- Departamento de Física Teórica, Atómica y Optica, Universidad de Valladolid, Valladolid, Spain
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27
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Wang C, Batsanov AS, Bryce MR, Martín S, Nichols RJ, Higgins SJ, García-Suárez VM, Lambert CJ. Oligoyne Single Molecule Wires. J Am Chem Soc 2009; 131:15647-54. [DOI: 10.1021/ja9061129] [Citation(s) in RCA: 189] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Changsheng Wang
- Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, United Kingdom, Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom, and Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom
| | - Andrei S. Batsanov
- Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, United Kingdom, Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom, and Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom
| | - Martin R. Bryce
- Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, United Kingdom, Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom, and Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom
| | - Santiago Martín
- Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, United Kingdom, Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom, and Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom
| | - Richard J. Nichols
- Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, United Kingdom, Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom, and Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom
| | - Simon J. Higgins
- Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, United Kingdom, Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom, and Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom
| | - Víctor M. García-Suárez
- Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, United Kingdom, Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom, and Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom
| | - Colin J. Lambert
- Department of Chemistry and Centre for Molecular and Nanoscale Electronics, Durham University, Durham DH1 3LE, United Kingdom, Centre for Nanoscale Science and Department of Chemistry, University of Liverpool, Liverpool, L69 7ZD, United Kingdom, and Department of Physics, Lancaster University, Lancaster, LA1 4YB, United Kingdom
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28
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Fadlallah MM, Schuster C, Schwingenschlögl U, Wunderlich T, Sanvito S. Electronic transport calculations for rough interfaces in Al, Cu, Ag, and Au. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2009; 21:315001. [PMID: 21828586 DOI: 10.1088/0953-8984/21/31/315001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We present results of electronic structure and transport calculations for metallic interfaces, based on density functional theory and the non-equilibrium Green's function method. Starting from the electronic structure of smooth Al, Cu, Ag, and Au interfaces, we study the effects of different kinds of interface roughness on the transmission coefficient and the I-V characteristic. In particular, we compare prototypical interface distortions, including vacancies and metallic impurities.
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Affiliation(s)
- M M Fadlallah
- Institut für Physik, Universität Augsburg, 86135 Augsburg, Germany. Physics Department, Faculty of Science, Benha University, Benha, Egypt
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