Author:
Prokes S. M.,Glembocki O. J.,Bermudez V. M.,Kaplan R.,Friedersdorf L. E.,Searson P. C.
Abstract
ABSTRACTPorous silicon layers have been formed which exhibit photoluminescence (PL) peaks that do not blueshift with increasing porosity. Hydrogen desorption experiments have been performed in vacuum under anneals between 230°C–390°C. Simultaneous, in-situ PL measurements show that the PL intensity decreases and disappears with decreasing hydrogen content. Infrared spectroscopy (IR) measurements also show loss of hydride species in the same temperature range. These results indicate that hydrogen is important in the PL process. We suggest that silicon hydrides are the source of PL in porous SI.
Publisher
Springer Science and Business Media LLC
Cited by
14 articles.
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