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Photoluminescence Quantum Yields from Crystalline and Amorphous Silicon Nanoparticles

Published online by Cambridge University Press:  17 February 2011

Rebecca Anthony  and
Uwe Kortshagen
Rebecca Anthony
Affiliation:
uk@me.umn.edu, University of Minnesota, Mechanical Engineering, 111 Church St. SE, Minneapolis, MN, 55455, United States
Uwe Kortshagen
Affiliation:
ranthony@me.umn.edu, University of Minnesota, Mechanical Engineering, 111 Church St. SE, Minneapolis, MN, 55455, United States
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Abstract

The optical properties of amorphous and crystalline silicon nanoparticles are studied. By tuning the power of the non-thermal plasma reactor, the structure of the particles is adjusted from amorphous to crystalline nanoparticles. The microstructure is studied using transmission electron microscopy, X-ray diffraction, and Raman vibrational spectroscopy. The photoluminescence quantum yields of crystalline nanoparticle samples are consistently higher than those of amorphous nanoparticles.

Keywords

Siluminescenceplasma-enhanced CVD (PECVD) (chemical reaction)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1056: Symposium HH – Nanophase and Nanocomposite Materials V , 2007 , 1056-HH12-09-FF13-09-GG15-09
Copyright
Copyright © Materials Research Society 2008

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References

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