Volume 197, Issue 1 pp. 123-127
Original Paper

Anodic oxidation of p+-type porous silicon having pores uniformly covered with Ge

B. Gelloz

Corresponding Author

B. Gelloz

Department of Electronics and Electrical Engineering, Faculty of Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184 8588, Japan

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A. Halimaoui

A. Halimaoui

France Telecom-CNET Grenoble, BP 98, 38243 Meylan Cedex, France

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Y. Campidelli

Y. Campidelli

France Telecom-CNET Grenoble, BP 98, 38243 Meylan Cedex, France

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A. Bsiesy

A. Bsiesy

Laboratoire de Spectrométrie Physique, Université Joseph Fourier de Grenoble I, CNRS, UMR 5588, BP 87, 38402 Saint Martin d'Hères Cedex, France

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N. Koshida

N. Koshida

Department of Electronics and Electrical Engineering, Faculty of Technology, Tokyo University of Agriculture and Technology, Koganei, Tokyo 184 8588, Japan

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R. Herino

R. Herino

Laboratoire de Spectrométrie Physique, Université Joseph Fourier de Grenoble I, CNRS, UMR 5588, BP 87, 38402 Saint Martin d'Hères Cedex, France

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First published: 23 April 2003

Abstract

Anodic oxidation of porous silicon, the inner surface of which is covered by a thin layer of Ge, has been studied. The Ge layer is first oxidized during a time proportional to the amount of Ge, prior to oxidation of the porous silicon. It is shown how anodic oxidation can be used as a new method for the measurement of the amount of Ge incorporated into porous silicon pores. It is also a valuable technique for evaluating the homogeneity of the Ge coverage.

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