• Title/Summary/Keyword: Mirowave heating

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Luminescence characterization of $YVO_4$: $Eu^{3+}$, $Bi^{3+}$ red phosphor by rapid microwave heating synthesis (급속 microwave 열처리 방법으로 합성한 $YVO_4$: $Eu^{3+}$, $Bi^{3+}$ 적색 형광체의 발광 특성)

  • Park, W.J.;Song, Y.H.;Moon, J.W.;Yoon, D.H.
    • Journal of the Korean Crystal Growth and Crystal Technology
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    • v.18 no.4
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    • pp.169-173
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    • 2008

  • $Eu^{3+}$ and $Bi^{3+}$ co-doped $YVO_4$ phosphors were produced by a microwave heating process. When the microwave heating method was synthesized,. the particle size was very small and the particles tended to agglomerate. However, as the heating time increased, the particle size increased and the agglomeration decreased. The emission spectrum exhibited a weak band for $^5D_0{\longrightarrow}^7F_1$ at 594.91 and 602.3 nm and strong sharp peaks at 616.7 and 620.0 nm due to the $^5D_0{\longrightarrow}^7F_2$ transition of $Eu^{3+}$. Microwave heating synthesis can provide a product without long time heating as well as good homogeneous distribution of activators.

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