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Photoluminescence and Photoluminescence Excitation of Si Aerogels Prepared by Supercritical Drying

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Published under licence by IOP Publishing Ltd
, , Citation Guo Guo-lin et al 1996 Chinese Phys. Lett. 13 62 DOI 10.1088/0256-307X/13/1/017

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1 Department of Chemistry, Peking University, Beijing 100871

2 Department of Physics, Peking University, Beijing 100871

Dates

  1. Received 3 April 1995
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0256-307X/13/1/62

Abstract

Si aerogel, the porous silicon with ultra high porosity, has been prepared by the technique of anodization followed by supercritical drying. Its photoluminescence, photoluminescence excitation and morphological features exhibit novel characteristics from those of the conventionally anodized porous silicon. We observed the differences between the Si aerogels made from <100> and <111> crystalline Si.

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10.1088/0256-307X/13/1/017