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Fluorescent silicon carbide as an ultraviolet-to-visible light converter by control of donor to acceptor recombinations
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
Meijo University, Nagoya, Japan.
Linköping University, Department of Physics, Chemistry and Biology, Semiconductor Materials. Linköping University, The Institute of Technology.
Universite Montpellier 2, France .
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2012 (English)In: Journal of Physics D: Applied Physics, ISSN 0022-3727, E-ISSN 1361-6463, Vol. 45, no 23, 235107- p.Article in journal (Refereed) Published
Abstract [en]

As an alternative to the conventional phosphors in white LEDs, a donor and acceptor co-doped fluorescent 6H-SiC can be used as an ultraviolet-to-visible light converter without any need of rare-earth metals. From experimental data we provide an explanation to how light can be obtained at room temperature by a balance of the donors and acceptors. A steady-state recombination rate model is used to demonstrate that the luminescence in fluorescent SiC can be enhanced by controlling the donor and acceptor doping levels. A doping criterion for optimization of this luminescence is thus proposed.

Place, publisher, year, edition, pages
Institute of Physics (IOP), 2012. Vol. 45, no 23, 235107- p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:liu:diva-77692DOI: 10.1088/0022-3727/45/23/235107ISI: 000305175500008OAI: oai:DiVA.org:liu-77692DiVA: diva2:528478
Available from: 2012-05-25 Created: 2012-05-25 Last updated: 2017-12-07

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Sun, JianwuJokubavicius, ValdasYakimova, RositsaSyväjärvi, Mikael

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Sun, JianwuJokubavicius, ValdasYakimova, RositsaSyväjärvi, Mikael
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