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Correlation Between Surface Morphology and Lattice Orientation of Microcrystalline Silicon

Published online by Cambridge University Press:  15 February 2011

M. Kondo
Affiliation:
Thin Film Si Solar Cells Superlab., Electrotechnical Laboratory, Tsukuba, Ibaraki 305, Japan
T. Nishimiya
Affiliation:
Thin Film Si Solar Cells Superlab., Electrotechnical Laboratory, Tsukuba, Ibaraki 305, Japan
K. Saitoh
Affiliation:
Thin Film Si Solar Cells Superlab., Electrotechnical Laboratory, Tsukuba, Ibaraki 305, Japan
T. Ohe
Affiliation:
Thin Film Si Solar Cells Superlab., Electrotechnical Laboratory, Tsukuba, Ibaraki 305, Japan
A. Matsuda
Affiliation:
Thin Film Si Solar Cells Superlab., Electrotechnical Laboratory, Tsukuba, Ibaraki 305, Japan
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Abstract

The surface morphology and preferential orientation of μc-Si:H has been studied on c-Si substrate in relation to the Si-H bonding mode. Epitaxy-like growth is observed on Si (001) substrate at a moderate temperature and under low ion bombardment, while the surface is significantly roughened. With increasing or decreasing the temperature or increasing the ion bombardment, the lattice orientation is randomized and an amorphous component is increased, resulting in the reduction of the surface roughness. The growth mode is intimately related to the Si-H bonding configuration. The epitaxy-like growth is collapsed accompanying the disappearance of the surface Si-H 2,3 mode. The resemblance of these phenomena to the low temperature MBE is discussed.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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References

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