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Science 3 July 1992:
Vol. 257. no. 5066, pp. 68 - 69
DOI: 10.1126/science.257.5066.68
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Articles

Chemiluminescence of Anodized and Etched Silicon: Evidence for a Luminescent Siloxene-Like Layer on Porous Silicon

Paul McCord 1, Shueh-Lin Yau 1, and Allen J. Bard 1

1 Department of Chemistry and Biochemistry, the University of Texas at Austin, Austin, TX 78712

Treatment of anodized or chemically etched silicon ("porous silicon") with dilute nitric acid or persulfate solution results in weak chemiluminescence in the visible region. Concentrated nitric acid reacts violently with porous Si produced by anodization with a bright flash of light. The fact that similar reactions occur with siloxene (Si6H6O3) prepared from CaSi2 suggests that the visible emission seen with porous Si can be attributed to this substance.

Submitted on February 21, 1992
Accepted on May 15, 1992


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Electrochemistry and Electrogenerated Chemiluminescence from Silicon Nanocrystal Quantum Dots.
Z. Ding, B. M. Quinn, S. K. Haram, L. E. Pell, B. A. Korgel, and A. J. Bard (2002)
Science 296, 1293-1297
   Abstract »    Full Text »    PDF »
Defining the essential functional regions of the nucleoporin Nup145p.
J. Emtage, M Bucci, J. Watkins, and S. Wente (1997)
J. Cell Sci. 110, 911-925
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)