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采用自组装方法和溶胶凝胶法制备了光子带隙位于489和543nm的2种Yb~(3+),Tb~(3+)共掺杂的ZrO_2反蛋白石光子晶体,并研究了光子带隙对Tb~(3+)离子490和545nm的上转换发光的调控。研究发现:Yb~(3+),Tb~(3+)共掺杂的ZrO_2反蛋白石光子晶体的光子带隙对Tb~(3+)的490nm(~5D4→~7F6)和545nm(~5D4→~7F5)的上转换发光有显著的影响。当Tb~(3+)离子的发射光谱带与光子禁带重合时,在光子带隙调制作用下,Tb~(3+)的上转换发光受到明显的抑制。通过调节光子晶体的周期结构可以实现对稀土Tb~(3+)的蓝光和绿光的上转换发射的调控。
Two Yb ~ (3 +) and Tb ~ (3+) codoped ZrO_2 inverse opal photonic crystals with photonic bandgap at 489 and 543nm were prepared by self-assembly method and sol-gel method. Photonic bandgap Regulation of Upconversion Luminescence of Tb ~ (3+) at 490 and 545nm. It is found that the photonic bandgap of Yb ~ (3 +) and Tb ~ (3+) codoped ZrO_2 inverse opal photonic crystals has no effect on the photoluminescence spectra of 490nm (~ 5D4 → ~ 7F6) and 545nm → ~ 7F5) has a significant impact on the up-conversion luminescence. When the emission band of Tb ~ (3+) ion coincides with the photon band gap, the upconversion luminescence of Tb ~ (3+) is obviously suppressed under photonic band gap modulation. By adjusting the periodic structure of the photonic crystal, the up-conversion emission of the blue and green light of Tb 3+ can be controlled.