Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-29T06:57:09.014Z Has data issue: false hasContentIssue false
  • English
  • Français

Spectroscopic Characterization of Alkyl-Passivated Si Nanoparticles Synthesized by a Solution Route

Published online by Cambridge University Press:  01 February 2011

Akinori Tanaka ,
Tadafumi Kamikake ,
Masaki Imamura ,
Yoshiaki Murase  and
Hidehiro Yasuda
Akinori Tanaka
Affiliation:
[email protected], Kobe University, Department of Mechanical Engineering, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan, +81-78-803-6123, +81-78-803-6123
Tadafumi Kamikake
Affiliation:
[email protected], Kobe University, Department of Mechanical Engineering, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan
Masaki Imamura
Affiliation:
[email protected], Kobe University, Department of Mechanical Engineering, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan
Yoshiaki Murase
Affiliation:
[email protected], Kobe University, Department of Mechanical Engineering, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan
Hidehiro Yasuda
Affiliation:
[email protected], Kobe University, Department of Mechanical Engineering, 1-1 Rokkodai, Nada-ku, Kobe, 657-8501, Japan
Get access

Abstract

We have synthesized the alkyl-passivated Si nanoparticles by a solution route, and have carried out the various spectroscopic studies in order to investigate their intrinsic optical properties, electronic structures, and surface chemistry. Photoluminescence (PL) spectra of the n-butyl-passivated Si nanoparticles with mean diameter less than 2 nm exhibit the strong ultraviolet-blue emission. Moreover, it is found that their valence-band maximum energies directly estimated from the synchrotron-radiation valence-band photoemission spectra correspond to the resonance features in the PL excitation spectra. Therefore, it is concluded that the PL from the present n-butyl-passivated Si nanoparticles originates from the electron-hole pair recombination between the modified valence-band and conduction-band due to the quantum size effect. From the synchrotron-radiation Si 2p core-level photoemission spectra, their interfacial electronic structures of these Si nanoparticles have also been characterized. From these results, we discuss the detailed electronic and chemical properties of alkyl-passivated Si nanoparticles.

Keywords

electronic structureSinanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 958: Symposium L – Group IV Semiconductor Nanostructures—2006 , 2006 , 0958-L10-29
Copyright
Copyright © Materials Research Society 2007

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

1. For example, Tanaka, A., Onari, S., and Arai, T., Phys. Rev. B 47, 1237 (1993).Google Scholar
2. For example, Canham, L. T., Appl. Phys. Lett. 57 1046 (1990).Google Scholar
3. For example, Cullis, A. G., Canham, L. T., and Calcott, P. D., J. Appl. Phys., 82, 909 (1997).10.1063/1.366536Google Scholar
4. Pettigrew, K. A., Liu, Q., Power, P. P., and Kauzlarich, S. M., Chem. Mater. 15, 4005 (2003).Google Scholar
5. Tanaka, A., Saito, R., Kamikake, T., Imamura, M., and Yasuda, H., Solid State Commun. 140, 400 (2006).Google Scholar
6. Miyadera, T., Koma, A., and Shimada, T., Surf. Sci. 526, 177 (2003).Google Scholar
7. Puzder, A., Williamson, A. J., Grossman, J. C., and Griulia, , Phys. Rev. Lett. 88, 097401 (2002).10.1103/PhysRevLett.88.097401Google Scholar
8. Reboredo, F. A. and Galli, G., J. Phys. Chem. B 109, 1072 (2005).Google Scholar
9. Terry, J., Linford, M. R., Wigren, C., Cao, R., Pianetta, P., and Chidsey, C. E. D., J. Appl. Phys. 85, 213 (1999).10.1063/1.369473Google Scholar
10. Hunger, R., Fritsche, R., Jaeckel, B., Jaegermann, W., Webb, L. J., and Lewis, N. S., Phys. Rev. B 72, 045317 (2005)10.1103/PhysRevB.72.045317Google Scholar