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Some Perspectives on the Luminescence Mechanism Via Surface-Confined States of Porous Si

Published online by Cambridge University Press:  28 February 2011

F. Koch ,
V. Petrova-Koch ,
T. Muschik ,
A. Nikolov  and
V. Gavrilenko
F. Koch
Affiliation:
Tech. Univ. Munich, Physik-Dept. E16, D-8046 Garching, Germany
V. Petrova-Koch
Affiliation:
Tech. Univ. Munich, Physik-Dept. E16, D-8046 Garching, Germany
T. Muschik
Affiliation:
Tech. Univ. Munich, Physik-Dept. E16, D-8046 Garching, Germany
A. Nikolov
Affiliation:
Tech. Univ. Munich, Physik-Dept. E16, D-8046 Garching, Germany
V. Gavrilenko
Affiliation:
Tech. Univ. Munich, Physik-Dept. E16, D-8046 Garching, Germany
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Abstract

We elaborate on the explanation of radiative emission involving surface-confined states on the nanocrystallites of porous Si. After reviewing the evidence for the existence of such states, we give a model description of the origin of visible luminescence in porous Si. The model accounts for different spectral luminescence bands with distinct energies and relaxation times.

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References

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