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Data for Impact of iron on the room temperature luminescence efficiency of oxygen-containing precipitates in silicon
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Bothe, Karsten, Herlufsen, Sandra and Murphy, John D. (2019) Data for Impact of iron on the room temperature luminescence efficiency of oxygen-containing precipitates in silicon. [Dataset]
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113535 2019-02-06 readme text for WRAP.txt - Accepted Version Available under License Creative Commons Attribution 4.0. Download (572b) |
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113535 2019-02-06 Open access dataset.xlsx - Unspecified Version Available under License Creative Commons Attribution 4.0. Download (55Kb) |
Official URL: http://wrap.warwick.ac.uk/113535/
Abstract
Oxygen precipitation in silicon has been associated with a weak room temperature sub-bandgap luminescence emission at around 1600 nm. We show that the additional presence of iron impurities enhances this emission by an order of magnitude and results in a red shift of the peak luminescence by approximately 45 nm. We not only observe an increase in the luminescence emission with iron contamination level but also with the density and size of the oxide precipitates. Moreover, we provide evidence that the sub-bandgap luminescence emission increases proportionally with the concentration of iron segregated to oxide precipitates after high temperature (>700 °C) annealing and thus allows evaluation of the gettering efficiency of oxygen-containing precipitates. Annealing of iron-contaminated samples at low temperatures (550 °C) results in a considerable reduction in the interstitial iron concentration without changing the sub-bandgap luminescence, indicating that the sink to which iron diffuses depends upon temperature.
Item Type: | Dataset | ||||||
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Subjects: | Q Science > QD Chemistry | ||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||||
Type of Data: | Tabular | ||||||
Library of Congress Subject Headings (LCSH): | Silicon, Luminescence, Photovoltaic power generation | ||||||
Publisher: | University of Warwick, School of Engineering | ||||||
Official Date: | 6 February 2019 | ||||||
Dates: |
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Status: | Not Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Media of Output (format): | .xlsx | ||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||
Copyright Holders: | University of Warwick | ||||||
Description: | The dataset (a single file in XLSX format) contains the data behind the figures in the paper. Captions to the figures are given in the paper. Abbreviations, variables and methods used are defined in the paper. Please address any queries to john.d.murphy@warwick.ac.uk. |
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Date of first compliant deposit: | 6 February 2019 | ||||||
Date of first compliant Open Access: | 6 February 2019 | ||||||
RIOXX Funder/Project Grant: |
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