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Li JJ, Chen ZB, Wang YH, Zhou XS, Xie LQ, Shi Z, Liu JX, Yan JW, Mao BW. Single-molecule anisotropic magnetoresistance at room temperature: Influence of molecular structure. Electrochim Acta 2021. [DOI: 10.1016/j.electacta.2021.138760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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2
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Wang YH, Yan F, Li DF, Xi YF, Cao R, Zheng JF, Shao Y, Jin S, Chen JZ, Zhou XS. Enhanced Gating Performance of Single-Molecule Conductance by Heterocyclic Molecules. J Phys Chem Lett 2021; 12:758-763. [PMID: 33405930 DOI: 10.1021/acs.jpclett.0c03430] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Enhancing the gating performance of single-molecule conductance is significant for realizing molecular transistors. Herein, we report a new strategy to improve the electrochemical gating efficiency of single-molecule conductance with fused molecular structures consisting of heterocyclic rings of furan, thiophene, or selenophene. One order magnitude of gating ratio is achieved within a potential window of 1.2 V for the selenophene-based molecule, which is significantly greater than that of other heterocyclic and benzene ring molecules. This is caused by the different electronic structures of heterocyclic molecules and transmission coefficients T(E), and preliminary resonance tunneling is achieved through the highest occupied molecular orbital at high potential. The current work experimentally shows that electrochemical gating performance can be significantly modulated by the alignment of the conducting orbital of the heterocyclic molecule relative to the metal Fermi energy.
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Affiliation(s)
- Ya-Hao Wang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Feng Yan
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Dong-Fang Li
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
- Santen Pharmaceutical (China) Co., Ltd., Suzhou 215026, China
| | - Yan-Feng Xi
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Rui Cao
- Department of Physics, Shanghai University, Shanghai 200444, China
| | - Ju-Fang Zheng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Yong Shao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Shan Jin
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jing-Zhe Chen
- Department of Physics, Shanghai University, Shanghai 200444, China
| | - Xiao-Shun Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
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3
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Improving Gating Efficiency of Electron Transport through Redox‐Active Molecular Junctions with Conjugated Chains. ChemElectroChem 2020. [DOI: 10.1002/celc.201902076] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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4
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Kolivoška V, Šebera J, Severa L, Mészáros G, Sokolová R, Gasior J, Kocábová J, Hamill JM, Pospíšil L, Hromadová M. Single Molecule Conductance of Electroactive Helquats: Solvent Effect. ChemElectroChem 2019. [DOI: 10.1002/celc.201901801] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Viliam Kolivoška
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Jakub Šebera
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Lukáš Severa
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16000 Prague Czech Republic
| | - Gábor Mészáros
- Research Centre for Natural Sciences, HAS Magyar tudósok krt. 2 H-1117 Budapest Hungary
| | - Romana Sokolová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Jindřich Gasior
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Jana Kocábová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
| | - Joseph M. Hamill
- School of ChemistryUniversity of Birmingham Edgbaston B15 2TT United Kingdom
| | - Lubomír Pospíšil
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
- Institute of Organic Chemistry and Biochemistry of the Czech Academy of Sciences Flemingovo nám. 2 16000 Prague Czech Republic
| | - Magdaléna Hromadová
- Department of Electrochemistry at NanoscaleJ. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences Dolejškova 3 18223 Prague Czech Republic
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5
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Huang JR, Huang H, Tao CP, Zheng JF, Yuan Y, Hong ZW, Shao Y, Niu ZJ, Chen JZ, Zhou XS. Controlling Contact Configuration of Carboxylic Acid-Based Molecular Junctions Through Side Group. NANOSCALE RESEARCH LETTERS 2019; 14:253. [PMID: 31350621 PMCID: PMC6660542 DOI: 10.1186/s11671-019-3087-7] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2019] [Accepted: 07/15/2019] [Indexed: 06/10/2023]
Abstract
In this paper, the contact configuration of single molecular junction is controlled through side group, which is explored by electrochemical jump-to-contact STM break junction. The conductance values of 2-methoxy-1,3-benzenedicarboxylic acid (2-M-1,3-BDC) is around 10-3.65 G0, which is different from that of 5-methoxy-1,3-benzenedicarboxylic acid (5-M-1,3-BDC) with 10-3.20 G0. Interestingly, the conductance value of 2-M-1,3-BDC is the same as that of 1,3-benzenedicarboxaldehyde (1,3-BDCA), while single molecular junctions of 5-M-1,3-BDC and 1,3-benzenedicarboxylic acid (1,3-BDC) give out similar conductance value. Since 1,3-BDCA binds to the Cu electrode through one oxygen atom, the dominated contact configuration for 1,3-BDC is through two oxygen atoms. The different conductance values between 2-M-1,3-BDC and 5-M-1,3-BDC can be attributed to the different contact configurations caused by the position of the side group. The current work provides a feasible way to control the contact configuration between the anchoring group and the electrode, which may be useful in designing future molecular electronics.
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Affiliation(s)
- Jun-Ren Huang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China
| | - Hong Huang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China
| | - Cai-Ping Tao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China
| | - Ju-Fang Zheng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China
| | - Ying Yuan
- Department of Physics, Shanghai University, Shanghai, 200444, China
| | - Ze-Wen Hong
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China.
| | - Yong Shao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China
| | - Zhen-Jiang Niu
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China
| | - Jing-Zhe Chen
- Department of Physics, Shanghai University, Shanghai, 200444, China.
- Zhejiang Tianyan Technology Co., Ltd, Hangzhou, 311215, China.
| | - Xiao-Shun Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, Institute of Physical Chemistry, Zhejiang Normal University, Jinhua, 321004, China.
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Huang B, Liu X, Yuan Y, Hong ZW, Zheng JF, Pei LQ, Shao Y, Li JF, Zhou XS, Chen JZ, Jin S, Mao BW. Controlling and Observing Sharp-Valleyed Quantum Interference Effect in Single Molecular Junctions. J Am Chem Soc 2018; 140:17685-17690. [DOI: 10.1021/jacs.8b10450] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bing Huang
- Key Laboratory
of the Ministry of Education for Advanced Catalysis Materials, Institute
of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Xu Liu
- Key Laboratory
of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Ying Yuan
- Department of Physics, Shanghai University, Shanghai 200444, China
| | - Ze-Wen Hong
- Key Laboratory
of the Ministry of Education for Advanced Catalysis Materials, Institute
of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Ju-Fang Zheng
- Key Laboratory
of the Ministry of Education for Advanced Catalysis Materials, Institute
of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Lin-Qi Pei
- Key Laboratory
of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Yong Shao
- Key Laboratory
of the Ministry of Education for Advanced Catalysis Materials, Institute
of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Jian-Feng Li
- State Key Laboratory
of Physical Chemistry of Solid Surfaces and Department of Chemistry,
iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Xiao-Shun Zhou
- Key Laboratory
of the Ministry of Education for Advanced Catalysis Materials, Institute
of Physical Chemistry, Zhejiang Normal University, Jinhua 321004, China
| | - Jing-Zhe Chen
- Department of Physics, Shanghai University, Shanghai 200444, China
- Zhejiang Tianyan Technology Co., Ltd, Hangzhou 311215, China
| | - Shan Jin
- Key Laboratory
of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Bing-Wei Mao
- State Key Laboratory
of Physical Chemistry of Solid Surfaces and Department of Chemistry,
iChEM, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
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Huang ML, Zhang F, Wang C, Zheng JF, Mao HL, Xie HJ, Shao Y, Zhou XS, Liu JX, Zhuang JL. Side-Group Effect on Electron Transport of Single Molecular Junctions. MICROMACHINES 2018; 9:E234. [PMID: 30424167 PMCID: PMC6187264 DOI: 10.3390/mi9050234] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2018] [Revised: 05/09/2018] [Accepted: 05/10/2018] [Indexed: 11/23/2022]
Abstract
In this article, we have investigated the influence of the nitro side-group on the single molecular conductance of pyridine-based molecules by scanning tunneling microscopy break junction. Single molecular conductance of 4,4'-bipyridine (BPY), 3-nitro-4-(pyridin-4-yl)pyridine (BPY-N), and 3-nitro-4-(3-nitropyridin-4-yl)pyridine (BPY-2N) were measured by contact with Au electrodes. For the BPY molecular junction, two sets of conductance were found with values around 10-3.1 G₀ (high G) and 10-3.7 G₀ (low G). The addition of nitro side-group(s) onto the pyridine ring resulted in lower conductance of 10-3.8 G₀ for BPY-N and 10-3.9 G₀ for BPY-2N, respectively, which can be attributed to the twist angle of two pyridine rings. Moreover, the steric hindrance of nitro group(s) also affects the contacting configuration of electrode-molecule-electrode. As a consequence, only one set of conductance value was observed for BPY-N and BPY-2N. Our work clearly shows the important role of side-groups on the electron transport of single-molecule junctions.
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Affiliation(s)
- Miao-Ling Huang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Fan Zhang
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Chen Wang
- Key Lab for Functional Materials Chemistry of Guizhou Province, School of Chemistry and Materials Science, Guizhou Normal University, Guiyang 550001, China.
| | - Ju-Fang Zheng
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Hui-Ling Mao
- Key Lab for Functional Materials Chemistry of Guizhou Province, School of Chemistry and Materials Science, Guizhou Normal University, Guiyang 550001, China.
| | - Hu-Jun Xie
- Department of Applied Chemistry, Zhejiang Gongshang University, Hangzhou 310018, China.
| | - Yong Shao
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Xiao-Shun Zhou
- Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China.
| | - Jin-Xuan Liu
- State Key Laboratory of Fine Chemicals, Institute of Artificial Photosynthesis, Dalian University of Technology, Dalian 116024, China.
| | - Jin-Liang Zhuang
- Key Lab for Functional Materials Chemistry of Guizhou Province, School of Chemistry and Materials Science, Guizhou Normal University, Guiyang 550001, China.
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