CONVERSION EFFICENCY OF THE YAG:CE LUMINOPHORES COOPERATED WITH UV-VIS SEMICONDUTOR EMMITERS
Mateusz Prorok
M.Prorok@doktoranci.pb.edu.plPolitechnika Białostocka, Katedra Elektroenergetyki, Fotoniki i Techniki Świetlnej (Poland)
Abstract
Commonly used white light emmision method utilizing LED technology depends mostly on luminophore and wavelenght 440–460 nm (blue) semicondutor emiter use. Emission of the wide visible spectrum, greenish yellow in colour, is an effect of fotoluminescence in cerium doped YAG cristal based luminophore. As the effect of fotoluminescence, radiation interferes with source radiation, resulting in white colour light with colour temperature depending on luminophore type. The article presents the research on both conversion efficency of the luminophore and the spectra response for the non-dedicated forcing, realised by usage of semiconductor emitters.
Keywords:
phosphors, luminescence, light emitting diodes, colour temperatureReferences
Babajanyan V. G., Kostanyan R. B., Muzhikyan P. H., Petrosyan A. G.: Absorption and Photoluminescence of YAG:Er3+, YAG:Ce3+, and YAG:Er3++Ce3+ Crystals. Journal of Contemporary Physics, Ashtarak 2010.
Google Scholar
Badgutdinov M. L., Korobov E. V., Luk’yanov F. A., Yunovich A. É., Kogan L. M., Gal’china N.A., Rassokhin I. T., Soshchin N. P.: Luminescence Spectra, Efficiency, and Color Characteristics of White-Light-Emitting Diodes Based on p-n InGaN/GaN Heterostructures with Phosphor Coatings. Physics of Semiconductor Devices, Moscow 2006.
Google Scholar
Gorrotxategi P., Consonni M., Gasse A.: Optical efficiency characterization of LED phosphors using a double integrating sphere system. Journal of Solid State Lighting, Grenoble 2015.
Google Scholar
Marin R., Sponchia G., Riello P., Sulcis R., Enrichi F.: Photoluminescence properties of YAG:Ce3+,Pr3+ phosphors synthesized via the Pechini method for white LEDs. Journal of Nanoparticle Research, Marghera 2012.
Google Scholar
Xiebing W., Xiaosong Y., Wanwan L., Kang S.: Doped Quantum Dots for White-Light-Emitting Diodes Without Reabsorption of Multiphase Phosphors. Advanced Materials, Weinheim 2012.
Google Scholar
Zajkowski M., Budzyński Ł.: Modyfikacja parametrów kolorymetrycznych w oprawach oświetleniowych ze źródłami LED. Przegląd Elektrotechniczny 7/2015.
Google Scholar
Zhang M., Wang J., Ding W., Zhang Q., Su Q.: A novel white light-emitting diode (w-LED) fabricated with Sr6BP5O20:Eu2+ phosphor. Applied Physics B Lasers and Optics, Kanton 2007.
Google Scholar
Zongyuan L., Sheng L., Kai W., Xiaobing L.: Status and prospects for phosphor-based white LED Packaging. Frontiers of Optoelectronics in China, China 2009.
Google Scholar
Dane katalogowe: Intematix-ChromaLit Remote Phosphor Light Source.
Google Scholar
Authors
Mateusz ProrokM.Prorok@doktoranci.pb.edu.pl
Politechnika Białostocka, Katedra Elektroenergetyki, Fotoniki i Techniki Świetlnej Poland
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