One-Pot Synthesis of Alkyl-Terminated Silicon Nanoparticles by Solution Reduction

표면 알킬기를 갖는 실리콘 나노입자의 One-Pot 용액환원 합성

  • Published : 2011.10.01


Silicon nanoparticles have attracted a great deal of scientific interests due to its intense photoluminescence in the visible spectral region and its potential applications in biological fluorescence maker, RGB (red, green, blue) display, photonics and photovoltaics etc. Practical applications making use of optical and physicochemical properties of Si nanoparticles requires an efficient synthetic method which allows easy modulation of their size, size distribution as well as surface functionalities etc. In this study, a one-pot solution reduction scheme is attempted to prepare alkyl-terminated Si nanoparticles (<10 nm) with Si precursors, (Octyl)$SiCl_3$ or mixture of (Octyl)$SiCl_3$ and $SiCl_4$, containing alkyl-groups using Na(naphthalide) as reducing agent. The surface capping of Si nanoparticles with octyl-groups as well as Si nanoparticle formation was achieved in one-pot reaction. The hexane soluble Si nanoparticles with octyl-termination were in the range of 2-10 nm by TEM and some oxide groups (Si-O-Si) was present on the surface by EDS/FTIR analyses. The optical properties of Si nanoparticles measured by UV-vis and PL evidenced that photoluminescent Si nanoparticles with alkyl-termination was successfully synthesized by solution reduction of alkyl-containing Si precursors in one-pot reaction.


Si Nanoparticles;Solution Reduction;Na(naphthalide);Photoluminescence;Tetrachlorosilane;Octyltrichlorosilane


  1. Canham, L. T., "Silicon Quantum Wire Array Fabrication by Electrochemical and Chemical Dissolution of Wafers," Appl. Phys. Lett., 57, 1046(1990).
  2. Li, Z. F., Swihart, M. T. and Rechenstein, E., "Luminescent Silicon Nanoparticles Capped by Conductive polyaniline Through The Self-assembly Method," Langmuir, 20, 1963-1971(2004).
  3. Veinot, J. G. C., "Synthesis, Surface Functionalization, and Properties of Freestanding Silicon Nanocrystals," Chem. Commun., 4160-4168(2006).
  4. Shiohara, A., Hanada, S., Prabakar, S., Fujioka, K., Lim, T. H., Yamamoto, K., Northcote, P. T. and Tilley, R. D., "Chemical Reactions on Surface Molecules Attached to Silicon Quantum Dots," J. Am. Chem. Soc., 132, 248-253(2010).
  5. Belomoin, G., Therrien, J., Smith, A., Rao, S., Twesten, R., Chaieb, S., Nayfeh, M. H., Wagner, L. and Mitas, L., "Observation of a Magic Discrete Family of Ultrabright Si Nanoparticles," Appl. Phys. Lett. 80(5), 841-843(2002).
  6. Stupca, M., Alsalhi, M., Saud, T. A., Almuhanna, A. and Nayfeh, M. H., "Enhancement of Polycrystalline silicon Solar Cells Using Ultrathin Films of Silicon Nanoparticle," Appl. Phys. Lett., 91, 063107(2007).
  7. Lee, J. K., Kung, M. C., Trahey, L., Missaghi, M. N. and Kung, H. H., "Nanocomposites Derived from Phenol-functionalized Si Nanoparticles for High Performance Lithium Ion Battery Anodes," Chem. Mater., 21(1), 6-8(2009).
  8. Kim, H., Seo, M., Park, M.-H. and Cho, J., "A Critical Size of Silicon Nano-anodes for Lithium Rechargeable batteries," Angew. Chem. Int. Ed., 49, 2146-2149(2010).
  9. Kwon, Y., Park, G.-S. and Cho, "Synthesis and Electrochemical Properties of Lithium-electroactive Surface-stabilized Silicon Quantum Dots," J. Electrochim. Acta, 52, 4663-4668(2007).
  10. Wiggers, H., Starke, R. and Roth, P., "Silicon Particle Formation by Pyrolysis of Silane in a Hot Wall Gasphase reactor," Chem. Eng. Tech., 24, 261-264(2001).<261::AID-CEAT261>3.0.CO;2-K
  11. Li, X., He, Y., Talukdar, S. S. and Swihart, M. T., "Process for Preparing Macroscopic Quantities of Brightly photoluminescent Silicon Nanoparticles with Emission Spanning the Visible Spectrum," Langmuir, 19, 8490-8496(2003).
  12. Bley, R. A. and Kauzlarich, S. M., "High Yield Method for Preparing Silicon Nanocrystals with Chemically accessible Surfaces," J. Am. Chem. Soc., 118, 12461-12462(1996).
  13. Baldwin, R. K., Pettigrew, K. A., Ratai, E., Augustine, M. P. and Kauzlarich, S. M., "Solution Reduction synthesis of Surface Stabilized Silicon Nanoparticles," Chem. Commun., 1822-1823(2002).
  14. Aihara, S., Ishii, R., Fukuhara, M., Kamata, N., Terunuma, D., Hirano, Y., Saito, N., Aramata, M. and Kashimura, S., "Electroreductive Synthesis and Optical Characterization of Silicon Nanoparticles," J. Non-Cryst. Solids, 296, 135-138(2001).
  15. Choi, J., Wang, N. S. and Reipa, V., "Electrochemical Reduction Synthesis of Photoluminescent Silicon nanocrystals," Langmuir, 25(12), 7097-7102(2009).
  16. Heath, J. R., "A Liquid-solution-phase Synthesis of Crystalline Silicon," Science, 258, 1131-1133(1992).
  17. Yang, C.-S., Bley, R. A., Kauzlarich, S. M., Lee, H. W. H. and Delgado, G. R., "Synthesis of Alkylterminated Silicon Nanoclusters by a Solution Route," J. Am. Chem. Soc., 121, 5191-5195(1999).
  18. Zou, J., Baldwin, R. K., Pettigrew, K. A. and Kauzlarich, S. M., "Solution Synthesis of Ultrastable luminescent Siloxane-coated Silicon Nanoparticles," Nano Lett., 4(7), 1181-1186(2004).
  19. Pettigrew, K. A., Liu, Q., Philip, P. P. and Kauzlarich, S. M., "Solution Synthesis of Alkyl- and Alkyl/alkoxycapped Silicon Nanoparticles Via Oxidation of $Mg_{2}Si$," Chem. Mater., 15, 4005-4011 (2003).
  20. Warner, J. H., Rubinsztein-Dunlop, H. and Tilley, R. D., "Watersoluble Photoluminescent Silicon Quantum Dots," J. Phys. Chem., 109, 19064-19067(2005).
  21. Liu, Q. and Kauzlarich, S. M., "A New Synthetic Route for the Synthesis of Hydrogen Terminated Silicon nanoparticles," Mater. Sci. Eng., B96, 72-75(2002).

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