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Chemical Modification of the Porous Silicon Surface

Published online by Cambridge University Press:  28 February 2011

Eric J. Lee ,
James S. Ha  and
Michael J. Sailor
Eric J. Lee
Affiliation:
Department of Chemistry, University of California at San Diego, La Jolla, CA 92093-0358
James S. Ha
Affiliation:
Department of Chemistry, University of California at San Diego, La Jolla, CA 92093-0358
Michael J. Sailor
Affiliation:
Department of Chemistry, University of California at San Diego, La Jolla, CA 92093-0358
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Abstract

The porous silicon (PS) surface is derivatized with ethanol, triethylsilanol and formic acid as well as oxidized with water. The two reactions used to prepare these surfaces are discussed, and FTIR spectra of the products are presented. Surface-modified PS retains 10-40% of its original photoluminescence. PS-derivatives display reversible luminescence quenching by gas phase water, ethanol, acetonitrile and benzene. The extent of quenching varies with different PS-derivatives depending on the interaction of the chemical vapor with the modified PS surfaces.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 358: Symposium F – Microcrystalline and Nanocrystalline Semiconductors , 1994 , 387
Copyright
Copyright © Materials Research Society 1995

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References

REFERENCES

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