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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zhang L., Fang M., Huang Z., Liu Y., Min X., Tang H., Chen K., Guan M., Molokeev M. S.
Заглавие : Preparation and luminescence properties of the blue-emitting phosphor BaBPO5:Eu2+
Место публикации : Sci. Adv. Mater. - 2016. - Vol. 8, Is. 5. - P.1086-1092. - ISSN 19472935 (ISSN), DOI 10.1166/sam.2016.2704
Примечания : Cited References: 22. - This work was financially supported by the National Natural Science Foundation of China (NSFC Grant no. 51172216) and the Fundamental Research Funds for the Central Universities (Grant no. 2652015022).
Предметные рубрики: Energy-transfer
Diodes
Ions
Eu3+
Photoluminescence
Reduction
Tb3+
Ключевые слова (''Своб.индексиров.''): babpo5--eu2+--phosphor--white light emitting diodes
Аннотация: Blue-emitting BaBPO5:xEu2+ phosphors were prepared by a high-temperature solid-state reaction route. The crystal phase, luminescence properties, lifetime, and thermal stability were investigated, respectively. The phase analysis indicated that BaBPO5 crystallize with the structure of stillwellite-type compounds. Under the excitation at 310 nm, the phosphor exhibited an asymmetric broad-band blue emission with peak at 410 nm, which was ascribed to the 4f-5d transition of Eu2+. It was further calculated that the dipole-dipole interactions were responsible for a concentration quenching effect in BaBPO5:xEu2+ phosphors at x = 0.08. The lifetime decreased with the increasing concentration of Eu2+ ions. The temperature-dependent emission spectra indicated an excellent thermal stability of the BaBPO5:0.08Eu2+ samples. Surface morphology and CIE coordinate were also investigated. All the properties assessed indicated that the developed blue-emitting BaBPO5:Eu2+ phosphor is a good candidate for application in white-light emitting diodes. © 2016 by American Scientific Publishers.
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