Cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method

Phase-pure cuprous oxide (Cu(2)O) crystals are difficult to grow since cupric oxide can form within the crystal as the crystal is cooled to ambient conditions. Vacancies are the solute which causes precipitation of macroscopic defects. Therefore, even when a mostly phase-pure single crystal is used...

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Autores principales: Frazer, Laszlo, Chang, Kelvin B, Poeppelmeier, Kenneth R, Ketterson, John B
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2015
Materias:
Focus on Advanced Inorganic Materials Science: Non-Traditional Concepts and Approaches
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5099835/
https://www.ncbi.nlm.nih.gov/pubmed/27877798
http://dx.doi.org/10.1088/1468-6996/16/3/034901
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author Frazer, Laszlo
Chang, Kelvin B
Poeppelmeier, Kenneth R
Ketterson, John B
author_facet Frazer, Laszlo
Chang, Kelvin B
Poeppelmeier, Kenneth R
Ketterson, John B
author_sort Frazer, Laszlo
collection PubMed
description Phase-pure cuprous oxide (Cu(2)O) crystals are difficult to grow since cupric oxide can form within the crystal as the crystal is cooled to ambient conditions. Vacancies are the solute which causes precipitation of macroscopic defects. Therefore, even when a mostly phase-pure single crystal is used as a feed rod, cupric oxide inclusions persist in the recrystallized solid. Control of the thermal profile during crystal growth, however, can improve phase-purity; a slow counter-rotation rate of the feed and seed rods results in fewer inclusions. Cupric oxide can be removed by annealing, which produces a factor of 540 ± 70 increase in phase-purity.
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spelling pubmed-50998352016-11-22 Cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method Frazer, Laszlo Chang, Kelvin B Poeppelmeier, Kenneth R Ketterson, John B Sci Technol Adv Mater Focus on Advanced Inorganic Materials Science: Non-Traditional Concepts and Approaches Phase-pure cuprous oxide (Cu(2)O) crystals are difficult to grow since cupric oxide can form within the crystal as the crystal is cooled to ambient conditions. Vacancies are the solute which causes precipitation of macroscopic defects. Therefore, even when a mostly phase-pure single crystal is used as a feed rod, cupric oxide inclusions persist in the recrystallized solid. Control of the thermal profile during crystal growth, however, can improve phase-purity; a slow counter-rotation rate of the feed and seed rods results in fewer inclusions. Cupric oxide can be removed by annealing, which produces a factor of 540 ± 70 increase in phase-purity. Taylor & Francis 2015-05-08 /pmc/articles/PMC5099835/ /pubmed/27877798 http://dx.doi.org/10.1088/1468-6996/16/3/034901 Text en © 2015 National Institute for Materials Science http://creativecommons.org/licenses/by/3.0/ Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence (http://creativecommons.org/licenses/by/3.0/) . Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
spellingShingle Focus on Advanced Inorganic Materials Science: Non-Traditional Concepts and Approaches
Frazer, Laszlo
Chang, Kelvin B
Poeppelmeier, Kenneth R
Ketterson, John B
Cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method
title Cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method
title_full Cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method
title_fullStr Cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method
title_full_unstemmed Cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method
title_short Cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method
title_sort cupric oxide inclusions in cuprous oxide crystals grown by the floating zone method
topic Focus on Advanced Inorganic Materials Science: Non-Traditional Concepts and Approaches
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5099835/
https://www.ncbi.nlm.nih.gov/pubmed/27877798
http://dx.doi.org/10.1088/1468-6996/16/3/034901
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