Elaboration of blue-emitting blue pigments based on Eu2+/Co 2+ codoped BaMgAl10O17 through the heterogeneous distribution of dopants

Shoji Kunimi, Shinobu Fujihara

研究成果: Article査読

10 被引用数 (Scopus)


Photoluminescence and coloring properties of Eu2+/Co 2+ codoped BaMgAl10O17 were investigated to produce inorganic blue-luminescent pigments. Two kinds of synthesis methods were employed for BaMgAl10O17:Eu2+,Co2+ powders based on a conventional solid-state reaction and a newly developed precipitation method. Powder samples through the solid-state reaction exhibited blue photoluminescence from Eu2+, which was quenched considerably by codoping with Co2+ due to the occurrence of a Eu2+ → Co2+ energy transfer. The precipitation method was then conceived to separate Eu2+ and Co2+ spatially in a BaMgAl 10O17 particle. Powder samples through the precipitation method could be colored blue by optical absorption of Co2+ without degrading blue photoluminescence from Eu2+. The inhomogeneous distribution of the Eu2+/Co2+ dopants in the BaMgAl 10O17 particles was instrumental to the suppression of the Eu2+ → Co2+ energy transfer.

ジャーナルDyes and Pigments
出版ステータスPublished - 2011 10 1

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Process Chemistry and Technology

フィンガープリント 「Elaboration of blue-emitting blue pigments based on Eu<sup>2+</sup>/Co <sup>2+</sup> codoped BaMgAl<sub>10</sub>O<sub>17</sub> through the heterogeneous distribution of dopants」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。