Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-26T17:33:50.263Z Has data issue: false hasContentIssue false
  • English
  • Français

Mechanism for controlling the shape of Cu nanocrystals prepared by the polyol process

Published online by Cambridge University Press:  03 March 2011

Seung I. Cha ,
Chan B. Mo ,
Kyung T. Kim ,
Yong J. Jeong  and
Soon H. Hong
Seung I. Cha
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Yusung-gu, Daejeon 305-701, Korea
Chan B. Mo
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Yusung-gu, Daejeon 305-701, Korea
Kyung T. Kim
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Yusung-gu, Daejeon 305-701, Korea
Yong J. Jeong
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Yusung-gu, Daejeon 305-701, Korea
Soon H. Hong*
Affiliation:
Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, Yusung-gu, Daejeon 305-701, Korea
*
a) Address all correspondence to this author. e-mail: [email protected]
Get access

Abstract

This study investigated a mechanism for controlling the shape of Cu nanocrystals fabricated using the polyol process, which considers the thermodynamic transition from a faceted surface to a rough surface and the growth mechanisms of nanocrystals with faceted or rough surfaces. The faceted surfaces were stable at relatively low temperatures because of the low entropy of perfectly faceted surfaces. Nanocrystals fabricated using a coordinative surfactant stabilized the faceted surface at a higher temperature than those fabricated using a noncoordinative surfactant. The growth rate of the surface under a given driving force was dependent on the surface structure, i.e., faceted or rough, and the growth of a faceted surface was a thermally activated process. Surface twins decreased the activation energy for growth of the faceted surface and resulted in rod- or wire-shaped nanocrystals.

Keywords

CuNanostructureParticulate
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 9 , September 2006 , pp. 2371 - 2378
Copyright
Copyright © Materials Research Society 2006

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1Sun, S., Murray, C.B., Weller, D., Folks, L., and Moser, A.: Monodispersed FePt nanoparticles and ferromagnetic FePt nanocrystal superlattices. Science 287, 1989 (2000).CrossRefGoogle ScholarPubMed
2Murray, C.B., Kagan, C.R., and Bawendi, M.G.: Synthesis and characterization of monodispersed nanocrystals and close-packed nanocrystal assemblies. Annu. Rev. Mater. Sci. 30, 545 (2000).Google Scholar
3Dumestre, F., Chaudret, B., Amiens, C., Fromen, M-C., Casanove, M-J., Renaud, P., and Zurcher, P.: Shape control of thermodynamically stable cobalt nanorods through organometallic chemistry. Angew. Chem., Int. Ed. Engl. 41(22), 4286 (2002).3.0.CO;2-M>CrossRefGoogle ScholarPubMed
4Wu, N., Fu, L., Su, M., Aslam, M., Wong, K. Chun, and Dravid, V.P.: Interaction of fatty acid monolayers with cobalt nanoparticles. Nano Lett. 4(2), 383 (2004).Google Scholar
5Chakroune, N., Viau, G., Ricolleau, C., Fiévet-Vincent, F., and Fiévet, F.: Cobalt-based anisotropic particles prepared by the polyol process. J. Mater. Chem. 13, 312 (2003).CrossRefGoogle Scholar
6Luna, C., Morales, M.P., Serna, C.J., and Vázquez, M.: Effects of surfactants on the particle morphology and self-organization of Co nanocrystals. Mater. Sci. Eng., C 23, 1129 (2003).Google Scholar
7Chinnasamy, C.N., Jeyadevan, B., Shinoda, K., and Tohji, K.: Polyol process-derived CoPt nanoparticles: Structural and magnetic properties. J. Appl. Phys. 93(10), 7583 (2003).Google Scholar
8Viau, G., Fievet-Vincent, F., and Fievet, F.: Nucleation and growth of bimetallic CoNi and FeNi monodisperse particles prepared in polyols. Solid State Ionics 84, 259 (1996).CrossRefGoogle Scholar
9Hegde, M.S., Larcher, D., DuPont, L., Beaudoin, B., Tekaia-Elhsissen, K., and Tarascon, J-M.: Synthesis and chemical reactivity of polyol-prepared monodispersed nickel powders. Solid State Ionics 93, 33 (1997).Google Scholar
10Silvert, P-Y., Herrera-Urbinab, R., and Tekaia-Elhsissena, K.: Preparation of colloidal silver dispersions by the polyol process. Part 2. Mechanism of particle formation. J. Mater. Chem. 7(2), 293 (1997).Google Scholar
11Silvert, P-Y. and Tekaia-Elhsissen, K.: Synthesis of monodispersed submicronic gold particles by the polyol process. Solid State Ionics 82, 53 (1995).Google Scholar
12Shibauchi, T., Krusin-Elbaum, L., Gignac, L., Black, C.T., Thurn-Albrecht, T., Russell, T.P., Schotter, J., Kastle, G.A., Emley, N., and Tuominen, M.T.: High coercivity of ultra-high-density ordered Co nanorod arrays. J. Magn. Magn. Mater. 226(230), 1553 (2001).Google Scholar
13Yao, Y.D., Chen, Y.Y., Lee, S.F., Chang, W.C., and Hu, H.L.: Magnetic and thermal studies of nano-size Co and Fe particles. J. Magn. Magn. Mater. 239, 249 (2002).Google Scholar
14Salzemann, C., Lisiecki, I., Urban, J., and Pileni, M-P.: Anisotropic copper nanocrystals synthesized in a supersaturated medium. Langmuir 20, 11772 (2004).Google Scholar
15Zhang, S-H., Jiang, Z-Y., Xie, Z-X., Xu, X., Huang, R-B., and Zheng, L-S.: Growth of silver nanowires from solutions: A cyclic penta-twinned-crystal growth mechanism. J. Phys. Chem. B 109, 9416 (2005).CrossRefGoogle ScholarPubMed
16Wiley, B., Herricks, T., Sun, Y.G., and Xia, Y.N.: Polyol synthesis of silver nanoparticles: Use of chloride and oxygen to promote the formation of single crystal, truncated cubes and tetrahedrons. Nano Lett. 4, 1733 (2004).Google Scholar
17Sun, Y. and Xia, Y.: Large-scale synthesis of uniform silver nanowires through a soft, self-seeding, polyol process. Adv. Mater. 14, 833 (2002).3.0.CO;2-K>CrossRefGoogle Scholar
18Howe, J.M.: Interfaces in Materials: Atomic Structure, Thermodynamics and Kinetics of Solid-Vapor, Solid-Liquid and Solid-Solid Interfaces (John Wiley & Sons, New York, 1997).Google Scholar
19Puntes, V.F., Krishan, K.M., and Alivisatos, A.P.: Colloidal nanocrystal shape and size control. Science 291, 2115 (2001).Google Scholar
20Rogach, A.L., Talapin, D.V., Shevchenko, E.V., Kornowski, A., Haase, M., and Weller, H.: Organization of matter on different size scales: Monodispersed nanocrystals and their superstructures. Adv. Funct. Mater. 12, 653 (2002).Google Scholar
21Cha, S.I., Mo, C.B., Kim, K.T., and Hong, S.H.: Ferromagnetic cobalt nano-dots, nano-rices, nano-wires and nano-flowers by polyol process. J. Mater. Res. 20(8), 2148 (2005).Google Scholar