101
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Electronic structure and stabilities of Ni-doped germanium nanoclusters: a density functional modeling study. J Mol Model 2012; 19:1473-88. [DOI: 10.1007/s00894-012-1690-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2012] [Accepted: 11/12/2012] [Indexed: 10/27/2022]
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102
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Liang Y, Wang V, Mizuseki H, Kawazoe Y. Band gap engineering of silicene zigzag nanoribbons with perpendicular electric fields: a theoretical study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:455302. [PMID: 23085744 DOI: 10.1088/0953-8984/24/45/455302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The electronic properties of silicene zigzag nanoribbons with the presence of perpendicular fields are studied by using first-principles calculations and the generalized nearest neighboring approximation method. In contrast to the planar graphene, in silicene the Si atoms are not coplanar. As a result, by applying perpendicular fields to the two-dimensional silicene sheet, the on-site energy can be modulated and the band gap at the Dirac point is open. The buckled structure also creates a height difference between the two edges of the silicene zigzag nanoribbons. We find that the external fields can modulate the energies of spin-polarized edge states and their corresponding band gaps. Due to the polarization in the plane, the modulation effect is width dependent and becomes much more significant for narrow ribbons.
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Affiliation(s)
- Yunye Liang
- Institute for Materials Research, Tohoku University, Aobaku, Sendai 980-8577, Japan.
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103
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Ngan VT, Janssens E, Claes P, Lyon JT, Fielicke A, Nguyen MT, Lievens P. High Magnetic Moments in Manganese-Doped Silicon Clusters. Chemistry 2012; 18:15788-93. [DOI: 10.1002/chem.201201839] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2012] [Indexed: 11/09/2022]
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104
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Kong X, Xu HG, Zheng W. Structures and magnetic properties of CrSin− (n = 3–12) clusters: Photoelectron spectroscopy and density functional calculations. J Chem Phys 2012; 137:064307. [DOI: 10.1063/1.4742065] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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105
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Theoretical Studies on the Structures and Stabilities of Charged, Titanium-Doped, Small Silicon Clusters, TiSi n − /TiSi n + (n = 1–8). J CLUST SCI 2012. [DOI: 10.1007/s10876-012-0483-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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106
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LI GUOLIANG, MA WENLIANG, GAO AIMEI, CHEN HONGYU, FINLOW DAVID, LI QIANSHU. DENSITY FUNCTIONAL THEORY STUDIES OF CHARGED, COPPER-DOPED, SMALL SILICON CLUSTERS, ${\rm CuSi}_{n}^{+}/{\rm CuSi}_{n}^{-}$ (n = 1–7). JOURNAL OF THEORETICAL & COMPUTATIONAL CHEMISTRY 2012. [DOI: 10.1142/s0219633612500125] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The structures and stabilities of charged, copper-doped, small silicon clusters [Formula: see text] (n = 1–7) have been systematically investigated using the density functional theory method at the B3LYP/6-311+G* level. For comparison, the geometries of neutral CuSi n clusters were also optimized at the same level, although most of them have been reported previously [see Xiao CY, Abraham A, Quinn R, Hagelberg F, Comparative study on the interaction of scandium and copper atoms with small silicon clusters, J Phys Chem A106:11380, 2002; Liu X, Zhao GF, Guo LJ, Wang XW, Zhang J, Jing Q, Luo YH, First-principle studies of the geometries and electronic properties of Cu m Si n (2 ≤ m + n ≤ 7) clusters, Chin Phys16:3359, 2007]. Our results for the ground state structures of neutral CuSi n clusters agree well with those of Liu et al. and Xiao et al. except for CuSi3 and CuSi7 . Removing or adding an electron greatly changes some ground state structures, i.e. for [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], and [Formula: see text]; others are almost unchanged, e.g. [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text], [Formula: see text]. The ground states of ionic [Formula: see text] are all singlet, except for the smaller CuSi- and [Formula: see text]. Based on the optimized geometries, various energetic properties, including binding energies, second-order difference energies, the highest occupied molecular orbit and the lowest unoccupied molecular orbital (HOMO–LUMO) energy gaps, ionization potential and electron affinities, were calculated for the most stable isomers of [Formula: see text]. All the results indicate that anionic [Formula: see text] and cationic [Formula: see text] clusters are relatively stable. The higher stability of the latter has been confirmed by Beck's observations.
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Affiliation(s)
- GUOLIANG LI
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou, 510006, Guangdong, P. R. China
| | - WENLIANG MA
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou, 510006, Guangdong, P. R. China
| | - AIMEI GAO
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou, 510006, Guangdong, P. R. China
| | - HONGYU CHEN
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou, 510006, Guangdong, P. R. China
| | - DAVID FINLOW
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou, 510006, Guangdong, P. R. China
| | - QIAN-SHU LI
- School of Chemistry and Environment, South China Normal University, Key Laboratory of Theoretical Chemistry of Environment, Ministry of Education, Guangzhou, 510006, Guangdong, P. R. China
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107
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Duncan MA. Invited review article: laser vaporization cluster sources. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2012; 83:041101. [PMID: 22559508 DOI: 10.1063/1.3697599] [Citation(s) in RCA: 159] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The laser vaporization cluster source has been used for the production of gas phase atomic clusters and metal-molecular complexes for 30 years. Numerous experiments in the chemistry and physics of clusters have employed this source. Its operation is simple in principle, but there are many subtle design features that influence the number and size of clusters produced, as well as their composition, charge state, and temperature. This article examines all aspects of the design of these cluster sources, discussing the relevant chemistry, physics, and mechanical aspects of experimental configurations employed by different labs. The principles detailed here provide a framework for the design and implementation of this source for new applications.
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Affiliation(s)
- Michael A Duncan
- Department of Chemistry, University of Georgia, Athens, Georgia 30602, USA.
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108
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Architectures, electronic structures, and stabilities of Cu-doped Ge n clusters: density functional modeling. J Mol Model 2012; 18:3887-902. [DOI: 10.1007/s00894-012-1374-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2011] [Accepted: 02/02/2012] [Indexed: 10/28/2022]
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109
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Xu HG, Wu MM, Zhang ZG, Yuan J, Sun Q, Zheng W. Photoelectron spectroscopy and density functional calculations of CuSin− (n = 4–18) clusters. J Chem Phys 2012; 136:104308. [DOI: 10.1063/1.3692685] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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110
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Wang H, Hu N, Tao DJ, Lu ZH, Nie J, Chen XS. Structural and electronic properties of phosphorus-doped titanium clusters: A DFT study. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2011.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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111
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Claes P, Janssens E, Ngan VT, Gruene P, Lyon JT, Harding DJ, Fielicke A, Nguyen MT, Lievens P. Structural identification of caged vanadium doped silicon clusters. PHYSICAL REVIEW LETTERS 2011; 107:173401. [PMID: 22107515 DOI: 10.1103/physrevlett.107.173401] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2011] [Indexed: 05/31/2023]
Abstract
The geometry of cationic silicon clusters doped with vanadium, Si(n)V(+) (n=12-16), is investigated by using infrared multiple photon dissociation of the corresponding rare gas complexes in combination with ab initio calculations. It is shown that the clusters are endohedral cages, and evidence is provided that Si(16)V(+) is a fluxional system with a symmetric Frank-Kasper geometry.
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Affiliation(s)
- P Claes
- Laboratory of Solid State Physics and Magnetism, Katholieke Universiteit Leuven, Celestijnenlaan 200D, B-3001 Leuven, Belgium
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112
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Zhou B, Krämer T, Thompson AL, McGrady JE, Goicoechea JM. A Highly Distorted Open-Shell Endohedral Zintl Cluster: [Mn@Pb12]3–. Inorg Chem 2011; 50:8028-37. [DOI: 10.1021/ic200329m] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Binbin Zhou
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Tobias Krämer
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Amber L. Thompson
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - John E. McGrady
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Jose M. Goicoechea
- Department of Chemistry, Inorganic Chemistry Laboratory, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
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113
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Okamoto H, Sugiyama Y, Nakano H. Synthesis and Modification of Silicon Nanosheets and Other Silicon Nanomaterials. Chemistry 2011; 17:9864-87. [DOI: 10.1002/chem.201100641] [Citation(s) in RCA: 138] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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114
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The geometric, energetic, and electronic properties of charged phosphorus-doped silicon clusters, PSi n +/PSi n − (n = 1–8). Theor Chem Acc 2011. [DOI: 10.1007/s00214-011-0947-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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115
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Palagin D, Gramzow M, Reuter K. On the stability of “non-magic” endohedrally doped Si clusters: A first-principles sampling study of MSi16+ (M = Ti,V,Cr). J Chem Phys 2011; 134:244705. [DOI: 10.1063/1.3604565] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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116
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117
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Kumar M, Bhattacharyya N, Bandyopadhyay D. Architecture, electronic structure and stability of TM@Ge(n) (TM = Ti, Zr and Hf; n = 1-20) clusters: a density functional modeling. J Mol Model 2011; 18:405-18. [DOI: 10.1007/s00894-011-1122-4] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Accepted: 05/09/2011] [Indexed: 10/18/2022]
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118
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Jose D, Datta A. Structures and electronic properties of silicene clusters: a promising material for FET and hydrogen storage. Phys Chem Chem Phys 2011; 13:7304-11. [PMID: 21359313 DOI: 10.1039/c0cp02580a] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structures and electronic properties of clusters of an all-Si analogue of graphene, silicene, have been studied through quantum chemical calculations. The structures of the six-membered rings show interesting chair like puckering, which for large sheet-like clusters form ordered ripples. Binding energies, HOMO-LUMO gaps and polarizabilities for the silicene clusters show interesting monotonic trends analogous to polyacenes. Stacking of two silicene layers leads to the formation of closed 3D clusters with high symmetry and strong Si-Si bonds. The heat of hydrogenation of silicene to form silicanes is overwhelmingly exothermic and leads to the opening up of the HOMO-LUMO gaps. Thus, analogous to graphanes, silicanes are predicted to be interesting materials for hydrogen storage and for their band engineering properties.
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Affiliation(s)
- Deepthi Jose
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, CET Campus, Thiruvananthapuram-695016, Kerala, India
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119
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Oña OB, Ferraro MB, Facelli JC. Transition from exo- to endo- Cu absorption in CuSi(n) clusters: A Genetic Algorithms Density Functional Theory (DFT) Study. MOLECULAR SIMULATION 2011; 37:678-688. [PMID: 21785526 PMCID: PMC3139224 DOI: 10.1080/08927020903583830] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The characterization and prediction of the structures of metal silicon clusters is important for nanotechnology research because these clusters can be used as building blocks for nano devices, integrated circuits and solar cells. Several authors have postulated that there is a transition between exo to endo absorption of Cu in Si(n) clusters and showed that for n larger than 9 it is possible to find endohedral clusters. Unfortunately, no global searchers have confirmed this observation, which is based on local optimizations of plausible structures. Here we use parallel Genetic Algorithms (GA), as implemented in our MGAC software, directly coupled with DFT energy calculations to show that the global search of CuSi(n) cluster structures does not find endohedral clusters for n < 8 but finds them for n ≥ 10.
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Affiliation(s)
- Ofelia B. Oña
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina, ;
| | - Marta B. Ferraro
- Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Argentina, ;
| | - Julio C. Facelli
- Department of Biomedical Informatics, University of Utah, 155 South 1452 East, Rm 405, Salt Lake City, US,
- Center for High Performance Computing, University of Utah, 155 South 1452 East, Rm 405, Salt Lake City, US,
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120
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Zhao RN, Han JG, Bai JT, Sheng LS. The medium-sized charged (n=7–13) clusters: A relativistic computational investigation. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.10.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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121
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Sun L, Chang Y, Tang S, Wang Z, Wang R. Structures and stabilities of endo- and exohedral Si20H20derivatives: X@Si20H20and XSi20H20,X=H+, H, N, P, C−, and Si−. Mol Phys 2010. [DOI: 10.1080/00268970701689714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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122
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Bandyopadhyay D, Kaur P, Sen P. New Insights into Applicability of Electron-Counting Rules in Transition Metal Encapsulating Ge Cage Clusters. J Phys Chem A 2010; 114:12986-91. [DOI: 10.1021/jp106354d] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Debashis Bandyopadhyay
- Physics Group, Birla Institute of Technology and Science, Pilani, Rajasthan, India, Physics Department, National Institute of Technology, Hamirpur, HP, India, and Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211019, India
| | - Prabhsharan Kaur
- Physics Group, Birla Institute of Technology and Science, Pilani, Rajasthan, India, Physics Department, National Institute of Technology, Hamirpur, HP, India, and Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211019, India
| | - Prasenjit Sen
- Physics Group, Birla Institute of Technology and Science, Pilani, Rajasthan, India, Physics Department, National Institute of Technology, Hamirpur, HP, India, and Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad 211019, India
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123
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Ngan VT, Gruene P, Claes P, Janssens E, Fielicke A, Nguyen MT, Lievens P. Disparate Effects of Cu and V on Structures of Exohedral Transition Metal-Doped Silicon Clusters: A Combined Far-Infrared Spectroscopic and Computational Study. J Am Chem Soc 2010; 132:15589-602. [DOI: 10.1021/ja105099u] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vu Thi Ngan
- Department of Chemistry, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Laboratory of Solid State Physics and Magnetism, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Philipp Gruene
- Department of Chemistry, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Laboratory of Solid State Physics and Magnetism, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Pieterjan Claes
- Department of Chemistry, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Laboratory of Solid State Physics and Magnetism, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Ewald Janssens
- Department of Chemistry, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Laboratory of Solid State Physics and Magnetism, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - André Fielicke
- Department of Chemistry, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Laboratory of Solid State Physics and Magnetism, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Minh Tho Nguyen
- Department of Chemistry, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Laboratory of Solid State Physics and Magnetism, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
| | - Peter Lievens
- Department of Chemistry, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Laboratory of Solid State Physics and Magnetism, Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, and Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, D-14195 Berlin, Germany
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124
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David J, Guerra D, Hadad CZ, Restrepo A. Structure and Reactivity of the 1Au6Pt Clusters. J Phys Chem A 2010; 114:10726-31. [DOI: 10.1021/jp106544w] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Jorge David
- Escuela de Ciencias y Humanidades, Departamento de Ciencias básicas, Universidad Eafit AA 3300, Medellín, Colombia, and Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, AA 1226 Medellín, Colombia
| | - Doris Guerra
- Escuela de Ciencias y Humanidades, Departamento de Ciencias básicas, Universidad Eafit AA 3300, Medellín, Colombia, and Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, AA 1226 Medellín, Colombia
| | - C. Z. Hadad
- Escuela de Ciencias y Humanidades, Departamento de Ciencias básicas, Universidad Eafit AA 3300, Medellín, Colombia, and Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, AA 1226 Medellín, Colombia
| | - Albeiro Restrepo
- Escuela de Ciencias y Humanidades, Departamento de Ciencias básicas, Universidad Eafit AA 3300, Medellín, Colombia, and Grupo de Química-Física Teórica, Instituto de Química, Universidad de Antioquia, AA 1226 Medellín, Colombia
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125
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126
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Wu MM, Zhou X, Zhou J, Sun Q, Wang Q, Jena P. Interaction of C(59)Si with Si based clusters: a study of Janus nanostructures. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:275303. [PMID: 21399252 DOI: 10.1088/0953-8984/22/27/275303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
Using density functional theory with the generalized gradient approximation (GGA), we show that carbon-silicon Janus anisotropic nanostructures can be synthesized by using C(59)Si heterofullerene as a seed where the doped Si atom preferentially attaches to some well-known silicon and silicon based clusters such as Si(10), WSi(12), TiSi(16), and BaSi(20). The interaction energy of these clusters with C(59)Si varies from 0.9 to 1.9 eV. The anisotropy of the resulting carbon-silicon Janus structures produces large dipole moments (4-9 D), anisotropic distributions of electronic orbitals, and the anisotropic reactivity.
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Affiliation(s)
- Miao Miao Wu
- Department of Advanced Materials and Nanotechnology, Peking University, Beijing 100871, People's Republic of China
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127
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Ngan VT, Nguyen MT. The Aromatic 8-Electron Cubic Silicon Clusters Be@Si8, B@Si8+, and C@Si82+. J Phys Chem A 2010; 114:7609-15. [DOI: 10.1021/jp103180y] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Vu Thi Ngan
- Department of Chemistry, and Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Faculty of Chemistry, National University of Education, Hanoi, Vietnam, and Institute for Computational Science and Technology of HoChiMinh City, Vietnam
| | - Minh Tho Nguyen
- Department of Chemistry, and Institute for Nanoscale Physics and Chemistry (INPAC), Katholieke Universiteit Leuven, B-3001 Leuven, Belgium, Faculty of Chemistry, National University of Education, Hanoi, Vietnam, and Institute for Computational Science and Technology of HoChiMinh City, Vietnam
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128
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Zhao RN, Han JG, Bai JT, Liu FY, Sheng LS. A relativistic density functional study of Sin (n=7–13) clusters with rare earth ytterbium impurity. Chem Phys 2010. [DOI: 10.1016/j.chemphys.2010.05.005] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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129
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130
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(Hyper)polarizabilities and optical absorption spectra of MSi12 clusters (M=Sc–Zn): A theoretical study. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.03.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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131
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Xu HG, Zhang ZG, Feng Y, Yuan J, Zhao Y, Zheng W. Vanadium-doped small silicon clusters: Photoelectron spectroscopy and density-functional calculations. Chem Phys Lett 2010. [DOI: 10.1016/j.cplett.2010.01.050] [Citation(s) in RCA: 141] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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132
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Reis CL, Pacheco JM. Bulk materials made of silicon cage clusters doped with Ti, Zr, or Hf. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:035501. [PMID: 21386290 DOI: 10.1088/0953-8984/22/3/035501] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We investigate the feasibility of assembling the exceptionally stable isovalent X@Si(16) (X = Ti, Zr and Hf) nanoparticles to form new bulk materials. We use first-principles density functional theory. Our results predict the formation of stable, wide band-gap materials crystallizing in HCP structures in which the cages bind weakly, similar to fullerite. This study suggests new pathways through which endohedral cage clusters may constitute a viable means toward the production of synthetic materials with pre-defined physical and chemical properties.
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Affiliation(s)
- C L Reis
- ATP Group, CFTC and Departamento de Física da Faculdade de Ciências, Complexo Interdisciplinar da Universidade de Lisboa, Avenida Professor Gama Pinto 2, P-1649-003 Lisboa, Portugal.
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133
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Bandyopadhyay D, Sen P. Density Functional Investigation of Structure and Stability of Gen and GenNi (n = 1−20) Clusters: Validity of the Electron Counting Rule. J Phys Chem A 2010; 114:1835-42. [DOI: 10.1021/jp905561n] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Debashis Bandyopadhyay
- Physics Group, Birla Institute of Technology and Science, Pilani - 333031, Rajasthan, India, and Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad-211019, U.P, India
| | - Prasenjit Sen
- Physics Group, Birla Institute of Technology and Science, Pilani - 333031, Rajasthan, India, and Harish-Chandra Research Institute, Chhatnag Road, Jhunsi, Allahabad-211019, U.P, India
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134
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135
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Zdetsis AD. Rationalizing and functionalizing stannaspherene: Very stable stannaspherene “alloys”. J Chem Phys 2009; 131:224310. [DOI: 10.1063/1.3267046] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
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136
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Li JR, Yao CH, Mu YW, Wan JG, Han M. Structures and magnetic properties of SinNi (n=1–17) clusters. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2009.09.027] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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137
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Zdetsis AD. Silicon−Bismuth and Germanium−Bismuth Clusters of High Stability. J Phys Chem A 2009; 113:12079-87. [DOI: 10.1021/jp905409m] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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138
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Zhao GF, Sun JM, Gu YZ, Wang YX. Density-functional study of structural, electronic, and magnetic properties of the EuSin (n=1–13) clusters. J Chem Phys 2009; 131:114312. [DOI: 10.1063/1.3232009] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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139
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Longo RC, Carrete J, Aguilera-Granja F, Vega A, Gallego LJ. A density-functional study of the structures and electronic properties of neutral, anionic, and endohedrally doped InxPx clusters. J Chem Phys 2009; 131:074504. [DOI: 10.1063/1.3206844] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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140
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Affiliation(s)
- E. N. Koukaras
- Department of Physics, University of Patras, GR-26500 Patras, Greece
| | - A. D. Zdetsis
- Department of Physics, University of Patras, GR-26500 Patras, Greece
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141
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Bandyopadhyay D. Study of pure and doped hydrogenated germanium cages: a density functional investigation. NANOTECHNOLOGY 2009; 20:275202. [PMID: 19528673 DOI: 10.1088/0957-4484/20/27/275202] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In this paper we present an ab initio electronic-structure calculation performed using density functional theory (DFT) with a polarized basis set (SDD) within the spin polarized generalized gradient approximation for pure and divalent transition metal doped hydrogenated germanium nanocluster cages Ge(n)H(n)M (M = Zn, Cd and Hg, n = 6-28). In the first step of the calculation, geometrical optimizations of the nanoclusters are done. In the next step only the ground state optimized geometries are used to calculate the binding energy (E(b)), HOMO-LUMO gap (Delta E(g)) and embedding energy of the clusters. To study the optical behaviour of the clusters, IR and Raman spectra are calculated. Further calculations on cation and anion clusters have been done only for pure and Zn doped clusters to obtain their vertical ionization potential (VIP), adiabatic electron affinity (AEA) and chemical potential.
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Affiliation(s)
- Debashis Bandyopadhyay
- Physics Group, Birla Institute of Technology and Science, Pilani, Rajasthan-333031, India.
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142
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Grubisic A, Ko YJ, Wang H, Bowen KH. Photoelectron Spectroscopy of Lanthanide−Silicon Cluster Anions LnSin− (3 ≤ n ≤ 13; Ln = Ho, Gd, Pr, Sm, Eu, Yb): Prospect for Magnetic Silicon-Based Clusters. J Am Chem Soc 2009; 131:10783-90. [DOI: 10.1021/ja805205r] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Andrej Grubisic
- Departments of Chemistry and Materials Sciences, Johns Hopkins University, Baltimore, Maryland 21218
| | - Yeon Jae Ko
- Departments of Chemistry and Materials Sciences, Johns Hopkins University, Baltimore, Maryland 21218
| | - Haopeng Wang
- Departments of Chemistry and Materials Sciences, Johns Hopkins University, Baltimore, Maryland 21218
| | - Kit H. Bowen
- Departments of Chemistry and Materials Sciences, Johns Hopkins University, Baltimore, Maryland 21218
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143
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Zhao WJ, Wang YX. Geometries, stabilities, and magnetic properties of MnGen (n=2–16) clusters: Density-functional theory investigations. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2008.12.039] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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144
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Wang J, Liu JH. Novel bi-transition metallic encapsulated naphthalene-like Si20prismatic cage: A DFT investigation. J Comput Chem 2009; 30:1103-10. [DOI: 10.1002/jcc.21137] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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145
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146
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Li JR, Wang GH, Yao CH, Mu YW, Wan JG, Han M. Structures and magnetic properties of SinMn (n=1–15) clusters. J Chem Phys 2009; 130:164514. [DOI: 10.1063/1.3123805] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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147
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Bandyopadhyay D. The study of the electronic structures and properties of pure and transition metal-doped silicon nanoclusters: a density functional theory approach. MOLECULAR SIMULATION 2009. [DOI: 10.1080/08927020802603598] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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148
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Cao TT, Zhao LX, Feng XJ, Lei YM, Luo YH. Structural and electronic properties of (n=1–12) clusters: A density functional theory investigation. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.theochem.2008.10.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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149
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Koyasu K, Atobe J, Furuse S, Nakajima A. Anion photoelectron spectroscopy of transition metal- and lanthanide metal-silicon clusters: MSin− (n=6–20). J Chem Phys 2008; 129:214301. [DOI: 10.1063/1.3023080] [Citation(s) in RCA: 116] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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150
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The electronic structures and properties of transition metal-doped silicon nanoclusters: A density functional investigation. Chem Phys 2008. [DOI: 10.1016/j.chemphys.2008.08.017] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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