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Isobe M, Nakayama S, Takagi S, Araki K, Kanai K. Synthesis and Characterization of Octacyano-Fe-Phthalocyanine. ACS OMEGA 2023; 8:27264-27275. [PMID: 37546620 PMCID: PMC10399171 DOI: 10.1021/acsomega.3c02638] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Accepted: 07/06/2023] [Indexed: 08/08/2023]
Abstract
Octacyano-metal-phthalocyanine MPc(CN)8 is a promising n-type stable organic semiconductor material with eight cyano groups, including a strong electron-withdrawing group at its molecular terminals. However, a thorough investigation of MPc(CN)8 has not yet been conducted. Therefore, we synthesized FePc(CN)8 and investigated its crystal structure, chemical and electronic states, electrical properties, photocatalytic activity, and magnetic properties. In this paper, we discuss the various properties of MPc(CN)8 in comparison with those of FePc. X-ray diffraction measurements indicated that the crystal structure of FePc(CN)8 was strongly influenced by the cyano groups and differed from the α- and β-forms of FePc. The space group P4/mcc structure of FePc(CN)8 was similar to that of the x-form of LiPc. The ultraviolet-visible (UV-vis) absorption spectrum of FePc(CN)8 was observed at wavelengths longer than that of FePc. Density functional theory-based molecular orbital calculations indicated that the energy gap of FePc(CN)8 is smaller than that of FePc, which can lead to the observation of the Q-band in the UV-vis absorption spectrum of FePc(CN)8 at longer wavelengths than that of FePc. Because FePc(CN)8 has a wider optical absorption band in the visible region than FePc, its photocatalytic activity is approximately four times higher than that of FePc. The conductivity of FePc(CN)8 was also higher than that of FePc, which is due to the larger overlap of π-electron clouds of the molecules in the crystal structure of FePc(CN)8. Magnetic measurements revealed that FePc(CN)8 exists in an antiferromagnetic ground state. The magnetic properties of FePc(CN)8 are specific to its crystal structure, with direct exchange interactions between Fe2+ ions and π-electron-mediated interactions. In particular, the Pauli paramagnetic behavior at high temperatures and the antiferromagnetic behavior at low temperatures (Weiss temperature θ = -4.3 ± 0.1 K) are characteristic of the π-d system.
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2
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Domínguez-Celorrio A, Garcia-Fernandez C, Quiroga S, Koval P, Langlais V, Peña D, Sánchez-Portal D, Serrate D, Lobo-Checa J. On-surface synthesis of Mn-phthalocyanines with optically active ligands. NANOSCALE 2022; 14:8069-8077. [PMID: 35608129 DOI: 10.1039/d2nr00721e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The synthesis of novel organic prototypes combining different functionalities is key to achieve operational elements for applications in organic electronics. Here we set the stage towards individually addressable magneto-optical transducers by the on-surface synthesis of optically active manganese-phthalocyanine derivatives (MnPc) obtained directly on a metallic substrate. We created these 2D nanostructures under ultra-high vacuum conditions with atomic precision starting from a simple phthalonitrile precursor with reversible photo-induced reactivity in solution. These precursors maintain their integrity after powder sublimation and coordinate with the Mn ions into tetrameric complexes and then transform into MnPcs on Ag(111) after a cyclotetramerization reaction. Using scanning tunnelling microscopy and spectroscopy together with DFT calculations, we identify the isomeric configuration of two bi-stable structures and show that it is possible to switch them reversibly by mechanical manipulation. Moreover, the robust magnetic moment brought by the central Mn ion provides a feasible pathway towards magneto-optical transducer fabrication. This work should trigger further research confirming such magneto-optical effects in MnPcs both on surfaces and in liquid environments.
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Affiliation(s)
- Amelia Domínguez-Celorrio
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Centre d'Elaboration de Materiaux et d'Etudes Structurales - Centre National de la Recherche Scientifique, Toulouse, France
| | - Carlos Garcia-Fernandez
- Centro de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizabal 5, E-20018 San Sebastián, Spain
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, E-20018 San Sebastian, Spain
| | - Sabela Quiroga
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Peter Koval
- Simune Atomistics S.L., Avenida Tolosa 76, 20018, San Sebastian, Spain
| | - Veronique Langlais
- Centre d'Elaboration de Materiaux et d'Etudes Structurales - Centre National de la Recherche Scientifique, Toulouse, France
| | - Diego Peña
- Centro de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Orgánica, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Daniel Sánchez-Portal
- Centro de Física de Materiales CSIC/UPV-EHU-Materials Physics Center, Manuel Lardizabal 5, E-20018 San Sebastián, Spain
- Donostia International Physics Center, Paseo Manuel de Lardizabal 4, E-20018 San Sebastian, Spain
| | - David Serrate
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
- Laboratorio de Microscopías Avanzadas, Universidad de Zaragoza, E-50018, Zaragoza, Spain
| | - Jorge Lobo-Checa
- Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, Zaragoza 50009, Spain.
- Departamento de Física de la Materia Condensada, Universidad de Zaragoza, E-50009 Zaragoza, Spain
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3
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Liu J, Abel M, Lin N. On-Surface Synthesis: A New Route Realizing Single-Layer Conjugated Metal-Organic Structures. J Phys Chem Lett 2022; 13:1356-1365. [PMID: 35112878 DOI: 10.1021/acs.jpclett.1c04134] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Recently, both experimental and theoretical advances have demonstrated that two-dimensional conjugated metal-organic frameworks (2D-cMOFs) exhibit interesting electronic and magnetic properties, such as high conductivity and ferromagnetism. Theoretical studies have predicted that exotic quantum states, including topological insulating states and superconductivity, emerge in some 2D-MOFs. The high design tunability of MOFs' structure and composition provides great opportunities to realize these structures. However, most conventional synthesis methods yield multilayer structures of the 2D-cMOFs, in which the predicted exotic quantum phases are often quenched because of interlayer interactions. It is highly desirable to synthesize single-layer cMOFs. On-surface synthesis represents a novel strategy toward this goal. In this Perspective, we discuss the recent developments in on-surface synthesis of 1D- and 2D-cMOFs.
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Affiliation(s)
- Jing Liu
- Division of Quantum State of Matter, Beijing Academy of Quantum Information Sciences, Beijing 100193, China
| | - Mathieu Abel
- Aix Marseille Universite, CNRS, IM2NP, Marseille 13397, France
| | - Nian Lin
- Department of Physics, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong, China
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4
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Kitao T, Zhang X, Uemura T. Nanoconfined synthesis of conjugated ladder polymers. Polym Chem 2022. [DOI: 10.1039/d2py00809b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This review highlights recent advances in controlled synthesis of conjugated ladder polymers using templates.
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Affiliation(s)
- Takashi Kitao
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
- JST-PRESTO, Kawaguchi, Saitama 332-0012, Japan
| | - Xiyuan Zhang
- Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan
| | - Takashi Uemura
- Department of Applied Chemistry, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
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5
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Begunovich LV, Kuklin AV, Baryshnikov GV, Valiev RR, Ågren H. Single-layer polymeric tetraoxa[8]circulene modified by s-block metals: toward stable spin qubits and novel superconductors. NANOSCALE 2021; 13:4799-4811. [PMID: 33629695 DOI: 10.1039/d0nr08554e] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Tunable electronic properties of low-dimensional materials have been the object of extensive research, as such properties are highly desirable in order to provide flexibility in the design and optimization of functional devices. In this study, we account for the fact that such properties can be tuned by embedding diverse metal atoms and theoretically study a series of new organometallic porous sheets based on two-dimensional tetraoxa[8]circulene (TOC) polymers doped with alkali or alkaline-earth metals. The results reveal that the metal-decorated sheets change their electronic structure from semiconducting to metallic behaviour due to n-doping. Complete active space self-consistent field (CASSCF) calculations reveal a unique open-shell singlet ground state in the TOC-Ca complex, which is formed by two closed-shell species. Moreover, Ca becomes a doublet state, which is promising for magnetic quantum bit applications due to the long spin coherence time. Ca-doped TOC also demonstrates a high density of states in the vicinity of the Fermi level and induced superconductivity. Using the ab initio Eliashberg formalism, we find that the TOC-Ca polymers are phonon-mediated superconductors with a critical temperature TC = 14.5 K, which is within the range of typical carbon based superconducting materials. Therefore, combining the proved superconductivity and the long spin lifetime in doublet Ca, such materials could be an ideal platform for the realization of quantum bits.
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Affiliation(s)
- Lyudmila V Begunovich
- International Research Center of Spectroscopy and Quantum Chemistry (IRC SQC), Siberian Federal University, 26 Kirensky st., 660074, Krasnoyarsk, Russia.
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6
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Huang CX, Li G, Yang LM, Ganz E. Ammonia Synthesis Using Single-Atom Catalysts Based on Two-Dimensional Organometallic Metal Phthalocyanine Monolayers under Ambient Conditions. ACS APPLIED MATERIALS & INTERFACES 2021; 13:608-621. [PMID: 33372749 DOI: 10.1021/acsami.0c18472] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
We have identified three novel metal phthalocyanine (MPc, M = Mo, Re, and Tc) single-atom catalyst candidates with excellent predicted performance for the production of ammonia from electrocatalytic nitrogen reduction reaction (NRR) through a combination of high-throughput screening and first-principles calculations on a series of 3d, 4d, and 5d transition metals anchored onto extended Pc monolayer catalysts. Analysis of the energy band structures and projected density of states of N2-MPc revealed significant orbital hybridization and charge transfer between the adsorbed N2 and catalyst MPc, which accounts for the high catalytic activity. Among 30 MPc catalysts, MoPc and TcPc monolayers were found to be the most promising new NRR catalysts, as they exhibit excellent stability, low onset potential, and high selectivity. A comprehensive reaction pathway search found that the maximum free energy changes for the MoPc and TcPc monolayers are 0.33 and 0.54 eV, respectively. As a distinctive nature of this work, the hybrid reaction pathway was considered extensively and searched systematically. The onset potential of the hybrid pathway is found to be smaller than or comparable to that of the commonly known pure pathway. Thus, the hybrid path is highly competitive with low onset potential and high activity. The hybrid pathway is expected to have an important impact on future research on the mechanism of NRR, and it will open up a new way to explore the mechanism of the NRR reaction. We hope that our work will provide impetus to the creation of new catalysts for reduction of N2 to NH3. This work provides new insights into the rational design of NRR catalysts and explores novel reaction pathways under ambient or mild conditions.
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Affiliation(s)
- Chun-Xiang Huang
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou 510006, China
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Guoliang Li
- Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education; Center for Computational Quantum Chemistry, School of Chemistry, South China Normal University, Guangzhou 510006, China
| | - Li-Ming Yang
- Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica, Key Laboratory of Material Chemistry for Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Materials Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Eric Ganz
- School of Physics and Astronomy, University of Minnesota, 115 Union St. SE, Minneapolis, Minnesota 55455, United States
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7
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Li J, Wu R. Metal-organic frameworks: possible new two-dimensional magnetic and topological materials. NANOSCALE 2020; 12:23620-23625. [PMID: 33211049 DOI: 10.1039/d0nr05748g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Finding new two-dimensional (2D) materials with novel quantum properties is highly desirable for technological innovations. In this work, we studied a series of metal-organic frameworks (MOFs) with different metal cores and discovered various attractive properties, such as room-temperature magnetic ordering, strong perpendicular magnetic anisotropy, huge topological band gap (>200 meV), and excellent spin-filtering performance. As many MOFs have been successfully synthesized in experiments, our results suggest realistic new 2D functional materials for the design of spintronic nanodevices.
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Affiliation(s)
- Jie Li
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA.
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8
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9
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Li J, Gu L, Wu R. Transition-metal phthalocyanine monolayers as new Chern insulators. NANOSCALE 2020; 12:3888-3893. [PMID: 31998918 DOI: 10.1039/c9nr09817h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
To explore new materials for the realization of the quantum anomalous Hall effect (QAHE), we studied the electronic, magnetic and topological properties of transition-metal phthalocyanine (TMPc) monolayers in a square lattice. Many of them have large topologically nontrivial band gaps and integer Chern numbers. In particular, the Fermi level of MoPc lies right in the band gap (Eg = 8.1 meV) and has large magnetic anisotropy energy (MAE = 2.0 meV per Mo atom) and a Curie temperature of 16 K, showing its usefulness for applications. The presence of the topologically protected edge state in a MoPc nanoribbon further confirms it as a new two-dimensional topological insulator. This much widens the search for QAHE materials for the design of quantum devices.
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Affiliation(s)
- Jie Li
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA.
| | - Lei Gu
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA.
| | - Ruqian Wu
- Department of Physics and Astronomy, University of California, Irvine, California 92697-4575, USA.
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10
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11
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Template-controlled on-surface synthesis of a lanthanide supernaphthalocyanine and its open-chain polycyanine counterpart. Nat Commun 2019; 10:5049. [PMID: 31695045 PMCID: PMC6834595 DOI: 10.1038/s41467-019-13030-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2019] [Accepted: 10/14/2019] [Indexed: 11/25/2022] Open
Abstract
Phthalocyanines possess unique optical and electronic properties and thus are widely used in (opto)electronic devices, coatings, photodynamic therapy, etc. Extension of their π-electron systems could produce molecular materials with red-shifted absorption for a broader range of applications. However, access to expanded phthalocyanine analogues with more than four isoindoline units is challenging due to the limited synthetic possibilities. Here, we report the controlled on-surface synthesis of a gadolinium-supernaphthalocyanine macrocycle and its open-chain counterpart poly(benzodiiminoisoindoline) on a silver surface from a naphthalene dicarbonitrile precursor. Their formation is controlled by the on-surface high-dilution principle and steered by different metal templates, i.e., gadolinium atoms and the bare silver surface, which also act as oligomerization catalysts. By using scanning tunneling microscopy, photoemission spectroscopy, and density functional theory calculations, the chemical structures along with the mechanical and electronic properties of these phthalocyanine analogues with extended π-conjugation are investigated in detail. Extending the π‐conjugation of phthalocyanine dyes, while synthetically challenging, has the potential to produce desirable new molecular materials. Here, the authors use a templated on‐surface approach to synthesize several extended phthalocyanine derivatives from the same building block, including a lanthanide superphthalocyanine and an open‐chain polycyanine.
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12
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Zhao Y, Yuan B, Li C, Zhang P, Mai Y, Guan D, Li Y, Zheng H, Liu C, Wang S, Jia J. On-Surface Synthesis of Iron Phthalocyanine Using Metal-Organic Coordination Templates. Chemphyschem 2019; 20:2394-2397. [PMID: 31025456 DOI: 10.1002/cphc.201900238] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2019] [Revised: 04/19/2019] [Indexed: 11/06/2022]
Abstract
On-surface synthesis provides a convenient route to many kinds of conjugated molecular nanostructures, but it has remained challenging to precisely control the reaction pathway for using multicomponent precursors. Herein, we demonstrate a two-step strategy to synthesize iron phthalocyanine (FePc) molecules using metal-organic coordination for templating by using high-resolution scanning tunnelling microscopy and non-contact atomic force microscopy. In a first step, 1,2,4,5-tetracyanobenzene (TCNB) precursors and Fe atoms self-assembly into Fe(TCNB)4 coordination complexes on a clean Au(111) surface. The Fe(TCNB)4 complexes further undergo cyclic tetramerization upon thermal annealing, forming single FePc molecules. We expect that our demonstrated synthetic strategy may shed light on the design and synthesis of two-dimensional extended conjugated systems.
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Affiliation(s)
- Yan Zhao
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Bingkai Yuan
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Can Li
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Pengfei Zhang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Yiyong Mai
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Dandan Guan
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Yaoyi Li
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Hao Zheng
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Canhua Liu
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Shiyong Wang
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
| | - Jinfeng Jia
- Key Laboratory of Artificial Structures and Quantum Control (Ministry of Education), School of Physics and Astronomy, Shanghai Jiao Tong University, 800 DongChuan Road, Shanghai, 200240, China
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13
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Guo X, Liu J, Cao L, Liang Q, Lei S. Nonvolatile Memory Device Based on Copper Polyphthalocyanine Thin Films. ACS OMEGA 2019; 4:10419-10423. [PMID: 31460136 PMCID: PMC6648378 DOI: 10.1021/acsomega.9b01224] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Accepted: 06/03/2019] [Indexed: 06/10/2023]
Abstract
In this work, we report the fabrication of nonvolatile memory devices based on chemical vapor deposition-grown copper polyphthalocyanine (CuPPc) thin films. The high polymerization degree and crystallinity of the as-obtained films were confirmed by transmission electron microscopy, X-ray photoelectron spectroscopy, and UV-vis studies. It was found that the device with Au/CuPPc/indium tin oxide sandwich structure exhibits good nonvolatile memory performance with a large ON/OFF current ratio of 103 and long retention time of 1.2 × 103 s.
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Affiliation(s)
- Xianfei Guo
- Department
of Chemistry, School of Science & Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin),
and Tianjin Key Laboratory
of Molecular Optoelectronic Science, Tianjin
University, Tianjin 300072, P. R. China
| | - Jie Liu
- Department
of Chemistry, School of Science & Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin),
and Tianjin Key Laboratory
of Molecular Optoelectronic Science, Tianjin
University, Tianjin 300072, P. R. China
| | - Lili Cao
- Department
of Chemistry, School of Science & Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin),
and Tianjin Key Laboratory
of Molecular Optoelectronic Science, Tianjin
University, Tianjin 300072, P. R. China
| | - Qiu Liang
- Department
of Chemistry, School of Science & Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin),
and Tianjin Key Laboratory
of Molecular Optoelectronic Science, Tianjin
University, Tianjin 300072, P. R. China
| | - Shengbin Lei
- Department
of Chemistry, School of Science & Collaborative Innovation
Center of Chemical Science and Engineering (Tianjin),
and Tianjin Key Laboratory
of Molecular Optoelectronic Science, Tianjin
University, Tianjin 300072, P. R. China
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14
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Pigot C, Dumur F. Recent Advances of Hierarchical and Sequential Growth of Macromolecular Organic Structures on Surface. MATERIALS 2019; 12:ma12040662. [PMID: 30813327 PMCID: PMC6416628 DOI: 10.3390/ma12040662] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/18/2019] [Accepted: 02/19/2019] [Indexed: 02/01/2023]
Abstract
The fabrication of macromolecular organic structures on surfaces is one major concern in materials science. Nanoribbons, linear polymers, and porous nanostructures have gained a lot of interest due to their possible applications ranging from nanotemplates, catalysis, optoelectronics, sensors, or data storage. During decades, supramolecular chemistry has constituted an unavoidable approach for the design of well-organized structures on surfaces displaying a long-range order. Following these initial works, an important milestone has been established with the formation of covalent bonds between molecules. Resulting from this unprecedented approach, various nanostructures of improved thermal and chemical stability compared to those obtained by supramolecular chemistry and displaying unique and unprecedented properties have been developed. However, a major challenge exists: the growth control is very delicate and a thorough understanding of the complex mechanisms governing the on-surface chemistry is still needed. Recently, a new approach consisting in elaborating macromolecular structures by combining consecutive steps has been identified as a promising strategy to elaborate organic structures on surface. By designing precursors with a preprogrammed sequence of reactivity, a hierarchical or a sequential growth of 1D and 2D structures can be realized. In this review, the different reaction combinations used for the design of 1D and 2D structures are reported. To date, eight different sequences of reactions have been examined since 2008, evidencing the intense research activity existing in this field.
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Affiliation(s)
- Corentin Pigot
- Aix Marseille Univ, CNRS, ICR UMR 7273, F-13397 Marseille, France.
| | - Frédéric Dumur
- Aix Marseille Univ, CNRS, ICR UMR 7273, F-13397 Marseille, France.
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15
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Klaasen H, Liu L, Gao HY, Viergutz L, Held PA, Knecht T, Meng X, Börner MC, Barton D, Amirjalayer S, Neugebauer J, Studer A, Fuchs H. Intermolecular coupling and intramolecular cyclization of aryl nitriles on Au(111). Chem Commun (Camb) 2019; 55:11611-11614. [DOI: 10.1039/c9cc03418h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The on-surface dimerization reaction of an organic nitrile on Au(111) is reported. The reaction cascade yielding a diazapyrene core was investigated by scanning tunneling microscopy, computational studies and reference compounds.
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16
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Buimaga-Iarinca L, Morari C. Translation of metal-phthalocyanines adsorbed on Au(111): from van der Waals interaction to strong electronic correlation. Sci Rep 2018; 8:12728. [PMID: 30143696 PMCID: PMC6109120 DOI: 10.1038/s41598-018-31147-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2018] [Accepted: 08/13/2018] [Indexed: 11/23/2022] Open
Abstract
Using first-principles calculations, we investigate the binding energy for six transition metal - phthalocyanine molecules adsorbed on Au(111). We focus on the effect of translation on molecule - surface physical properties; van der Waals interactions as well as the strong correlation in d orbitals of transition metals are taken into account in all calculations. We found that dispersion interaction and charge transfer have the dominant role in the molecule-surface interaction, while the interaction between the transition metal and gold has a rather indirect influence over the physics of the molecule-surface system. A detailed analysis of the physical properties of the adsorbates at different geometric configurations allows us to propose qualitative models to account for all values of interface dipole charge transfer and magnetic moment of metal-phthalocyanines adsorbed on Au(111).
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Affiliation(s)
- L Buimaga-Iarinca
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania
| | - C Morari
- National Institute for Research and Development of Isotopic and Molecular Technologies, 67-103 Donat, 400293, Cluj-Napoca, Romania.
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17
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Popescu A, Younts RA, Hoffman B, McAfee T, Dougherty DB, Ade HW, Gundogdu K, Bondarev IV. Monitoring Charge Separation Processes in Quasi-One-Dimensional Organic Crystalline Structures. NANO LETTERS 2017; 17:6056-6061. [PMID: 28873308 DOI: 10.1021/acs.nanolett.7b02471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
We perform the transient absorption spectroscopy experiments to investigate the dynamics of the low-energy collective electron-hole excitations in α-copper phthalocyanine thin films. The results are interpreted in terms of the third-order nonlinear polarization response function. It is found that, initially excited in the molecular plane, the intramolecular Frenkel exciton polarization reorients with time to align along the molecular chain direction to form coupled Frenkel-charge-transfer exciton states, the eigenstates of the one-dimensional periodic molecular lattice. The process pinpoints the direction of the charge separation in α-copper phthalocyanine and similar organic molecular structures. Being able to observe and monitor such processes is important both for understanding the physical principles of organic thin film solar energy conversion device operation and for the development of organic optoelectronics in general.
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Affiliation(s)
- Adrian Popescu
- Department of Math and Physics, North Carolina Central University , Durham, North Carolina 27707, United States
| | | | | | - Terry McAfee
- Department of Physics and Engineering Physics, Tulane University , New Orleans, Louisiana 70118, United States
| | | | | | | | - Igor V Bondarev
- Department of Math and Physics, North Carolina Central University , Durham, North Carolina 27707, United States
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Matsuoka R, Sakamoto R, Hoshiko K, Sasaki S, Masunaga H, Nagashio K, Nishihara H. Crystalline Graphdiyne Nanosheets Produced at a Gas/Liquid or Liquid/Liquid Interface. J Am Chem Soc 2017; 139:3145-3152. [DOI: 10.1021/jacs.6b12776] [Citation(s) in RCA: 344] [Impact Index Per Article: 49.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Ryota Matsuoka
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- Japan Society
for the Promotion of Science (JSPS), Ichibancho, Chiyoda-ku, Tokyo 102-8471, Japan
| | - Ryota Sakamoto
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
- JST-PRESTO, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Ken Hoshiko
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Sono Sasaki
- Faculty
of Fiber Science and Engineering, Kyoto Institute of Technology,Matsugasaki Hashikami-cho 1, Sakyo-ku, Kyoto 606-8585, Japan
- RIKEN SPring-8
Center, Hyogo 679-5148, Japan
| | - Hiroyasu Masunaga
- Japan Synchrotron Radiation
Research Institute (JASRI)/SPring-8, 1-1-1 Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198, Japan
| | - Kosuke Nagashio
- JST-PRESTO, 4-1-8, Honcho, Kawaguchi, Saitama 332-0012, Japan
- Department
of Materials Engineering, The University of Tokyo, Tokyo 113-8656, Japan
| | - Hiroshi Nishihara
- Department
of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
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Zhou J, Wang Q, Sun Q, Kawazoe Y, Jena P. Giant magnetocrystalline anisotropy of 5d transition metal-based phthalocyanine sheet. Phys Chem Chem Phys 2015; 17:17182-9. [DOI: 10.1039/c5cp01525a] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Giant magnetocrystalline anisotropy energy can be achieved under electric field or biaxial strain of 5d transition metal-based phthalocyanine sheet.
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Affiliation(s)
- Jian Zhou
- Physics Department
- Virginia Commonwealth University
- Richmond
- USA
| | - Qian Wang
- Center for Applied Physics and Technology
- College of Engineering
- Peking University
- Beijing 100871
- China
| | - Qiang Sun
- Department of Materials Science and Engineering
- College of Engineering
- Peking University
- Beijing 100871
- China
| | | | - Puru Jena
- Physics Department
- Virginia Commonwealth University
- Richmond
- USA
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21
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Kezilebieke S, Amokrane A, Abel M, Bucher JP. Hierarchy of Chemical Bonding in the Synthesis of Fe-Phthalocyanine on Metal Surfaces: A Local Spectroscopy Approach. J Phys Chem Lett 2014; 5:3175-82. [PMID: 26276329 DOI: 10.1021/jz5015696] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Scanning tunneling spectroscopy (STS) has become a key tool for accessing properties of organometallic molecules adsorbed on surfaces. However, the rich variety of signatures makes it sometimes a difficult task to find out which feature is intrinsic to the molecule, i.e., relevant for a metal-ligand interaction or related to the interaction of the molecule with the substrate. Here we study the prototype covalent self-assembly of FePc and probe how electronic/magnetic properties at the local scale change as a function of temperature-induced step-by-step assembly, starting from TCNB (1,2,4,5- Tetracyanobenzene) molecular and Fe atomic precursors. Intermediate complexes with tetra-coordinated Fe atoms are then used both, as synthons for the FePc and as identifiers of specific features of the STS. As observed by STS and confirmed by spin-polarized DFT calculations, the occupied dπ states of Fe are present in both the FePc and Fe(TCNB)2 on Au(111). The main difference appears in the dz(2) states, which play a key role in magnetism as confirmed by the presence/absence of the Kondo resonance. A comprehensive picture is obtained by following with STS the hybridization of the dz(2) orbital of Fe to various substrates (Cu, Au and Co). Finally it is demonstrated that FePc units can be created by on-surface polymerization from the Fe(TCNB)2 network upon thermal annealing.
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Affiliation(s)
- Shawulienu Kezilebieke
- †Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS UMR 7504, Université de Strasbourg, F-67034 Strasbourg, France
| | - Anis Amokrane
- †Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS UMR 7504, Université de Strasbourg, F-67034 Strasbourg, France
| | - Mathieu Abel
- ‡IM2NP, CNRS UMR 7334, Université Aix-Marseille, Campus de Saint-Jérôme, Case 142, F-13397 Marseille Cedex 20, France
| | - Jean-Pierre Bucher
- †Institut de Physique et Chimie des Matériaux de Strasbourg, CNRS UMR 7504, Université de Strasbourg, F-67034 Strasbourg, France
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