Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-13T00:50:01.508Z Has data issue: false hasContentIssue false
  • English
  • Français

Luminescent Colloidal Silicon Nanocrystals Prepared by Nanoseconds Laser Fragmentation and Laser Ablation in Water

Published online by Cambridge University Press:  01 February 2011

Vladimir Svrcek ,
Davide Mariotti ,
Richard Hailstone ,
Hiroyuki Fujiwara  and
Michio Kondo
Vladimir Svrcek
Affiliation:
vladimir.svrcek@aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Research Center for Photovoltaics, Central 2, Umezono 1-1-1,, Tsukuba, 305-8568, Japan, 81-29-861-5429, 81-29-861-3367
Davide Mariotti
Affiliation:
dxmemc@rit.edu, Kate Gleason College of Engineering Rochester Institute of Technology, Department of Microelectronic Engineering, 82 Lomb Memorial Drive, Rochester, NY, NY 14623, United States
Richard Hailstone
Affiliation:
dxailstone@rit.edu, Chester F. Carlson Center for Imaging Science, Rochester Institute of Technology,, Department of Microelectronic Engineering, 54 Lomb Memorial Drive,, Rochester, NY, NY 14623, United States
Hiroyuki Fujiwara
Affiliation:
hiro-fujiwara@aist.go.jp, National Institute of Advanced Industrial Science and Technology (AIST), Research Center for Photovoltaics, Central 2, Umezono 1-1-1,, Tsukuba, 305-8568, Japan
Michio Kondo
Affiliation:
mhkondo@tkg.att.ne.jp, National Institute of Advanced Industrial Science and Technology (AIST), Research Center for Photovoltaics, Central 2, Umezono 1-1-1,, Tsukuba, 305-8568, Japan
Get access

Abstract

The surface states of silicon nanocrystals (Si-ncs) considerably affect quantum confinement effects and may determinate final nanocrystals properties. Colloidally dispersed Si-ncs offer larger freedom for surface modification compared to common plasma enhanced chemical vapor deposition or epitaxial synthesis in a solid matrix. The Si-ncs fabrication and elaboration in water by pulsed laser processing is an attractive alternative for controlling and engineering of nanocrystal surface by environmentally compatible way. We report on the possibility of direct silicon surface ablation and Si-ncs fabrication by nanosecond pulsed laser fragmentation of electrochemically etched Si micrograins and by laser ablation of crystalline silicon target immersed in de-ionized water. Two nanosecond pulsed lasers (Nd:YAG, and excimer KrF) are successfully employed to assure fragmentation and ablation in order to produce silicon nanoparticles. Contrary to the fragmentation process, which is more efficient under Nd:YAG irradiation, the laser ablation by both lasers led to the fabrication of fine and room temperature photoluminescent Si-ncs. The processing that has natural compatibility with the environment and advanced state of fabrication technologies may imply new possibilities and applications.

Keywords

luminescencelaser ablationnanoscale
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1066: Symposium A – Amorphous and Polycrystalline Thin-Film Silicon Science and Technology—2008 , 2008 , 1066-A18-10
Copyright
Copyright © Materials Research Society 2008

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. Canham, L. T. Appl. Phys. Lett 57, 1046 (1990).Google Scholar
2. Lehmann, V. and Gosele, U. Appl. Phys. Lett. 58, 856 (1991).Google Scholar
3. Wolkin, M. V. Jorne, J. Fauchet, P. M. Allan, G. and Delerue, C. Phys. Rev. Lett. 82, 197 (1999).Google Scholar
4. Ŝvrcek, V., Slaoui, A. and Muller, J.C., J. Appl. Phys. 95, 3158 (2004).Google Scholar
5. Ŝvrcek, V., Sasaki, T. Shimizu, Y. and Koshizaki, N. Appl. Phys. Lett 89, 213113 (2006).Google Scholar
6. Ŝvrcek, V., Sasaki, T. Shimizu, Y. and Koshizaki, N. Chem. Phys. Lett. 429, 483 (2006).Google Scholar
7. Mafune, F. and Kondow, T. Chem. Phys. Lett. 343, 383 (2004).Google Scholar
8. Zeldovich, Y. B. and Raizer, Y. P. Physics of Shock Waves and High-Temperature Hydrodynamic Phenomena (Dover Publication, Inc,, New York, 2001).Google Scholar
9. Ŝvrcek, V., Sasaki, T. Shimizu, Y. and Koshizaki, N. Journal of Laser Micro/Nanoengineering 2, 15 (2007).Google Scholar
10. Oraevsky, A. A. Letoshkov, V. S. and Esenafiev, R. O. Proceedings of the Workshop “laser ablation: Mechanism and Applications”, Pulsed laser ablation of biotissue. review of ablation mechanisms (Springer, Berlin, 1991).Google Scholar
11. Ŝvrcek, V., Sasaki, T. Shimizu, Y. and Koshizaki, N. J. Appl. Phys., 103, 023101 (2008).Google Scholar