Fluorescent silicon carbide as an ultraviolet-to-visible light converter by control of donor to acceptor recombinations
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
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.
IdentifiersURN: urn:nbn:se:liu:diva-77692DOI: 10.1088/0022-3727/45/23/235107ISI: 000305175500008OAI: oai:DiVA.org:liu-77692DiVA: diva2:528478