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Gan T, Zhang G, Shang Y, Su X, Yang ZD, Sun X. Electronic and transport properties of the (VBz)n@MoS2NT nanocable. Phys Chem Chem Phys 2016; 18:4385-93. [PMID: 26790537 DOI: 10.1039/c5cp07315d] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The electronic structure of a novel inorganic (8, 8) MoS2 nanotube nanocable, (VBz)n@MoS2NT, (where Bz refers as C6H6), is investigated using density functional theory. Transport property calculations are further performed employing non-equilibrium Green's function methods by modeling a two-probe device with a finite-sized nanocable sandwiched between two electrodes of its own. It is found that the transport properties of the nanocable agree well with its electronic structure. The core (VBz)n nanowire in the (VBz)n@MoS2NT plays a significant role in electron transportation, meanwhile, the sheath MoS2NT also participates in electron transportation. This phenomenon is different from those of (VBz)n@CNT and (VBz)n@BNNT nanocables. For the (VBz)n@CNT, the transport properties are majorly dominated by the metallic CNT sheath, while for the (VBz)n@BNNT, it is merely decided by the core (VBz)n. The conductivity of the (VBz)n@MoS2NT is slightly better in comparison with pure (VBz)n. Similar to pure (VBz)n, the (VBz)n@MoS2NT shows spin-polarized transport properties: the spin-down state gives a higher conductivity than the spin-up state. The values of the spin filter efficiency of the (VBz)n@MoS2NT can be up to >80%, indicating it to be a good candidate for spin filters. In addition, it is also found that encapsulating (VBz)n into the MoS2NT could introduce magnetism. More importantly, the ferromagnetic (VBz)n@MoS2NT is thermally rather stable. Therefore, encapsulating (VBz)n into the MoS2NT can effectively tune the electronic and transport properties for exploring novel functional nanodevices.
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Affiliation(s)
- Tian Gan
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China.
| | - Guiling Zhang
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China.
| | - Yan Shang
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China.
| | - Xiaohong Su
- Heilongjiang Polytechnic, Harbin 150080, China
| | - Zhao-Di Yang
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China.
| | - Xiaojun Sun
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150040, China.
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Sun C, Zhang G, Shang Y, Yang ZD, Sun X. Electronic and transport properties of PSi@MoS2 nanocables. Phys Chem Chem Phys 2016; 18:4333-44. [PMID: 26648018 DOI: 10.1039/c5cp05694b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Electronic structures and transport properties of prototype MoS2 nanotube (15, 0) nanocables, including undoped PSi@MoS2 and B- and P-doped PSi@MoS2 (where PSi refers to polysilane), are investigated using the density functional theory (DFT) and the non-equilibrium Green's function (NEGF) methods. It is found that transport properties of two-probe systems by sandwiching finite long nanocables between two Au electrodes are basically in agreement with the electronic structures of their corresponding infinitely long systems. Encapsulating undoped and doped PSi nanowires inside the MoS2 nanotubes could not significantly affect the electronic and transport properties. B-doping and P-doping upon PSi play different roles in the electronic and transport properties. B-doping may exert constructive and destructive effects on electron transport depending on its position and applied bias direction, while P-doping displays a negligible effect. In addition, we found that bi-doping by two adjacent B atoms could slightly enhance the conductivity. These results could offer some clues for conducting experiments to achieve nanoelectronic devices with intrinsic transport properties of MoS2 nanotubes.
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Affiliation(s)
- Cuicui Sun
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China.
| | - Guiling Zhang
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China.
| | - Yan Shang
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China.
| | - Zhao-Di Yang
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China.
| | - Xiaojun Sun
- College of Chemical and Environmental Engineering, Harbin University of Science and Technology, Harbin 150080, China.
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Yarzhemsky VG, Parshakov AS, Kochubei DI, Izotov AD, Il’in EG. Calculation of the structure of new inorganic fullerenes—Mo13Cl24(C2H x )2 clusters. DOKLADY CHEMISTRY 2015. [DOI: 10.1134/s0012500815050080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Il’in EG, Yarzhemsky VG, Parshakov AS, Kryzhovets OS. Quantum-chemical calculations of molybdenum chloride clusters Mo13C24, Mo13Cl26, and Mo13Cl30. RUSS J INORG CHEM+ 2013. [DOI: 10.1134/s0036023613120139] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Hong SY, Kreizman R, Rosentsveig R, Zak A, Sloan J, Enyashin AN, Seifert G, Green MLH, Tenne R. One‐ and Two‐Dimensional Inorganic Crystals inside Inorganic Nanotubes. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000456] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sung You Hong
- Chemistry Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford, OX1 3TA, UK
| | - Ronen Kreizman
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel, Fax: +972‐8‐934‐4138
| | - Rita Rosentsveig
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel, Fax: +972‐8‐934‐4138
| | - Alla Zak
- NanoMaterials, Ltd. Weizmann Science Park, Nes Ziona 74140, Israel
| | - Jeremy Sloan
- Department of Physics, University of Warwick, Coventry, CV4 7AL, UK
| | - Andrey N. Enyashin
- Physical Chemistry, Technical University Dresden, 01062 Dresden, Germany
- Institute of Solid State Chemistry UB RAS, 620990 Ekaterinburg, Russia
| | - Gotthard Seifert
- Physical Chemistry, Technical University Dresden, 01062 Dresden, Germany
| | - Malcolm L. H. Green
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK
| | - Reshef Tenne
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel, Fax: +972‐8‐934‐4138
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Remskar M, Virsek M, Jesih A. WS2 nanobuds as a new hybrid nanomaterial. NANO LETTERS 2008; 8:76-80. [PMID: 18095728 DOI: 10.1021/nl0719426] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
We report on the first inorganic nanobuds: WS2 nanotubes decorated with fullerene-like particles. They were synthesized by sulfurization of W5O14 nanowires. The fullerene-like particles nucleate in surface corrugations of the nanowires and grow by a diffusion process simultaneously with the transformation of nanowires into hollow multiwall nanotubes. Electron microscopy data are correlated with details of the transformation process revealing the possible mechanism of the formation of these new complex nanomaterials.
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Affiliation(s)
- Maja Remskar
- Jozef Stefan Institute, Jamova 39, 1000 Ljubljana, Slovenia.
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Schuffenhauer C, Parkinson BA, Jin-Phillipp NY, Joly-Pottuz L, Martin JM, Popovitz-Biro R, Tenne R. Synthesis of fullerene-like tantalum disulfide nanoparticles by a gas-phase reaction and laser ablation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2005; 1:1100-9. [PMID: 17193403 DOI: 10.1002/smll.200500133] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Motivated by the discovery of the C(60) molecule (buckminsterfullerene), the search for inorganic counterparts of this closed-cage nanostructure started in 1992 with the discovery of nested fullerene-like nanoparticles of WS(2). Inorganic fullerene-like (IF) materials have since been found in numerous two-dimensional compounds and are available in a variety of shapes that offer major applications such as in lubricants and nanocomposites. Various synthetic methodologies have been employed to achieve the right conditions for the constricted or templated growth needed for the occurrence of this new phase. In this study, IF-TaS(2) is produced from a volatile chloride precursor in the gas phase and in small yield by room temperature laser ablation both in argon and in liquid CS(2). For the gas-phase reaction, a high yield of IF nanoparticles was obtained between 400 and 600 degrees C with a low concentration of the precursor gas. The average size and the yield of the IF-TaS(2) nanoparticles decrease with temperature. Above 600 degrees C, IF nanoparticles were found in low yields and at sizes below 20 nm. The stability of the IF nanoparticles produced by the gas-phase reaction is discussed in the light of two existing theoretical models. Laser ablation in argon leads to IF nanoparticles filled with clusters of TaS(2). Agglomeration of the nanoparticles can be avoided by laser ablation in liquid CS(2).
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Affiliation(s)
- Christoph Schuffenhauer
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
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Singh DMDJ, Pradeep T, Bhattacharjee J, Waghmare UV. Novel Cage Clusters of MoS2 in the Gas Phase. J Phys Chem A 2005; 109:7339-42. [PMID: 16834099 DOI: 10.1021/jp052454u] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Laser evaporation of MoS(2) nanoflakes gives negatively charged magic number clusters of compositions Mo(13)S(25) and Mo(13)S(28), which are shown to have closed-cage structures. The clusters are stable and do not show fragmentation in the post-source decay analysis even at the highest laser powers. Computations suggest that Mo(13)S(25) has a central cavity with a diameter of 4.5 A. The nanosheets of MoS(2) could curl upon laser irradiation, explaining the cluster formation.
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Hong SY, Popovitz-Biro R, Prior Y, Tenne R. Synthesis of SnS2/SnS fullerene-like nanoparticles: a superlattice with polyhedral shape. J Am Chem Soc 2003; 125:10470-4. [PMID: 12926973 DOI: 10.1021/ja036057d] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Tin disulfide pellets were laser ablated in an inert gas atmosphere, and closed cage fullerene-like (IF) nanoparticles were produced. The nanoparticles had various polyhedra and short tubular structures. Some of these forms contained a periodic pattern of fringes resulting in a superstructure. These patterns could be assigned to a superlattice created by periodic stacking of layered SnS(2) and SnS. Such superlattices are reminiscent of misfit layer compounds, which are known to form tubular morphologies. This mechanism adds up to the established mechanism for IF formation, namely, the annihilation of reactive dangling bonds at the periphery of the nanoparticles. Additionally, it suggests that one of the driving forces to form tubules in misfit compounds is the annihilation of dangling bonds at the rim of the layered structure.
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Affiliation(s)
- Sung You Hong
- Department of Materials and Interfaces, Weizmann Institute of Science, Rehovot 76100, Israel
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Tenne R. Fullerene-like materials and nanotubes from inorganic compounds with a layered (2-D) structure. Colloids Surf A Physicochem Eng Asp 2002. [DOI: 10.1016/s0927-7757(02)00104-8] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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