Does the fast, blue photoluminescence from spark-processed silicon originate from tungsten doping?

It has recently been stated in the literature that the fast, blue photoluminescence which emanates from spark-processed silicon upon laser irradiation originates from tungsten contaminants which have been inadvertently introduced into the silicon substrate when Si is spark-processed by utilizing a t...

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Published in:Thin solid films 1998-07, Vol.325 (1), p.1-3
Main Authors: Hummel, R.E., Shepherd, N., Ludwig, M.H., Stora, M.E.
Format: Article
Language:English
Subjects:
blue photoluminescence
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Elemental semiconductors
Exact sciences and technology
Fast
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Photoluminescence
Physics
Spark-processed silicon
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description It has recently been stated in the literature that the fast, blue photoluminescence which emanates from spark-processed silicon upon laser irradiation originates from tungsten contaminants which have been inadvertently introduced into the silicon substrate when Si is spark-processed by utilizing a tungsten counter electrode. We present four pieces of experimental evidence which argue against this suggestion. An alternative interpretation is presented.
doi_str_mv 10.1016/S0040-6090(98)00426-X
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subjects blue photoluminescence
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Elemental semiconductors
Exact sciences and technology
Fast
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Photoluminescence
Physics
Spark-processed silicon
title Does the fast, blue photoluminescence from spark-processed silicon originate from tungsten doping?
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