Free-Standing 2D Silicon Nanocrystals Stabilized with Perfluorophenyl Ligands: Experiment and Ab Initio Research

Abstract:

Article Preview

Silicon (Si) is currently the basis of most of nanodevice technology, therefore ultrathin materials based on Si have the great advantage of easy integration into existing circuitry. First flat silicon nanoparticles have been obtained with perfluorophenyl (PFPh) ligand coating. The size of these particles varied from 15 to 50 nm. Their thickness evaluated with the atomic force microscopy was about 3.3 nm. Based on ab initio DFT calculations we investigate the geometries and electronic structures of free-standing PFPh-stabilized 2D silicon in order to see if such systems have promising electronic and optical properties. We also examined the effect of doping PFPh-stabilized 2D silicon by the Mn atoms.

Info:

Periodical:

Solid State Phenomena (Volumes 233-234)

Edited by:

Nikolai Perov and Anna Semisalova

Pages:

575-578

DOI:

10.4028/www.scientific.net/SSP.233-234.575

Citation:

L. Aslanov et al., "Free-Standing 2D Silicon Nanocrystals Stabilized with Perfluorophenyl Ligands: Experiment and Ab Initio Research", Solid State Phenomena, Vols. 233-234, pp. 575-578, 2015

Online since:

July 2015

Export:

Price:

$38.00

* - Corresponding Author

[1] Y. Sugiyama, H. Okamoto, T. Mitsuoka et al., Synthesis and Optical Properties of Monolayer Organosilicon Nanosheets, J. Am. Chem. Soc., 132 (2010) 5946-5947.

[2] H. Nakano, M. Nakano, K. Nakanishi et al., Preparation of alkylmodified silicon nanosheets by hydrosilylation of layered polysilane (Si6H6), J. Am. Chem. Soc., 134 (2012) 5452–5455.

DOI: 10.1021/ja212086n

[3] R. Hoffmann, Small but Strong Lessons from Chemistry for Nanoscience, Angew. Chem. Int. Ed., 52 (2013) 93–103.

DOI: 10.1002/anie.201206678

[4] Wen X-D, Hoffmann R, Ashcroft N.W., Two-Dimensional CdSe Nanosheets and their Interaction with Stabilizing Ligands, Adv. Mater., 25 (2013) 261–266.

DOI: 10.1002/adma.201203184

[5] A.S. Orekhov, S.V. Savilov, V.N. Zakharov et al., The isolated flat silicon nanocrystals (2D structures) stabilized with perfluorophenyl ligands, J. Nanopart. Res., 16 (2014) 2190-2197, and references therein.

DOI: 10.1007/s11051-013-2190-4

[6] L.A. Aslanov, V.N. Zakharov, M.A. Zakharov et al., Stabilization of silicon nanoparticles by carbenes, Russ. J. Coord. Chem., Pleiades Publishing Ltd., 36 (2010) 330 -332.

DOI: 10.1134/s1070328410050027

[7] L.A. Aslanov, V.N. Zakharov, A.V. Pavlikov et al., Synthesis and Properties of Nanosilicon Stabilized by Butyl and Perfluorobutyl Ligands, Russ J. Coord. Chem., Pleiades Publishing Ltd., 39 (2013) 427-431.

DOI: 10.1134/s1070328413060018

[8] A. Kamyshny, V.N. Zakharov, M.A. Zakharov et al., Photoluminescent Silicon Nanocrystals Stabilized by Ionic Liquid, J. Nanopart. Res. 13 (2011) 1971-(1978).

DOI: 10.1007/s11051-010-9950-1

[9] P. Blaha, K. Schwarz, G.K.H. Madsen et al. Wien2k, An Augmented Plane Wave+Local Orbitals Program for Calculating Crystal Properties (K. Schwarz, Techn. Universitat Wien, Austria, 2001).

[10] J.P. Perdew, S. Burke, M. Ernzerhof, Generalized Gradient Approximation Made Simple, Phys. Rev. Lett. 77 (1996) 3865-3868.

DOI: 10.1103/physrevlett.77.3865

[11] M.J.S. Spencer, M.R. Bassett, T. Morishita et al., Interactions between stacked layers of phenyl-modified silicene, New Journal of Physics 15 (2013) 125018-1—125018-12, and references therein.

DOI: 10.1088/1367-2630/15/12/125018

[12] Feng Li, Ruifeng Lu, Qiushi Yao et al., Geometric and Electronic Structures as well as Thermodynamic stability of Hexyl-Modified Silicon Nanosheet, Journal of Physical Chemistry C 117 (2013) 13283−13288.

DOI: 10.1021/jp402875t

In order to see related information, you need to Login.