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首页> 外文期刊>Inorganic Chemistry Communications >Effect of Pb~(2+) on the photoluminescence characteristics of ZrO_2:Mn~(2+) nanocrystals
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Effect of Pb~(2+) on the photoluminescence characteristics of ZrO_2:Mn~(2+) nanocrystals

机译:Pb〜(2+)对ZrO_2:Mn〜(2+)纳米晶体光致发光特性的影响

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摘要

The photoluminescence (PL) properties of the Mn,Pb-doped ZrO_2 nanocrystals have been investigated in detail.A relatively broad and strong emission band centered at about 640 nm was observed originating from the ~4T_1 (~4G) to the ~6A_1 (~6S) transition of Mn~(2+). In the presence of Pb~(2+), the luminescent intensities of the ZrO_2:Mn nanocrystals have been greatly enhanced due to the energy transfer from Pb~(2+) to Mn~(2+).As a concentration quenching exists,the optimum value of Pb~(2+)is 5%.
机译:已对Mn,Pb掺杂的ZrO_2纳米晶体的光致发光(PL)特性进行了详细研究。观察到从〜4T_1(〜4G)到〜6A_1(〜 6S)转变为Mn〜(2+)。在Pb〜(2+)存在下,由于Pb〜(2+)向Mn〜(2+)的能量转移,ZrO_2:Mn纳米晶体的发光强度得到了极大的增强。 Pb〜(2+)的最佳值为5%。

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