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

  • F. Koch (a1), V. Petrova-Koch (a1), T. Muschik (a1), A. Nikolov (a1) and V. Gavrilenko (a1)...


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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