【摘要】 利用合成蛋白石模板、填充溶胶前驱体、烧结移除模板的方法,制备BaTi O3∶Tm3+的反蛋白石结构.根据实验测量的反射光谱与650nm激光光源激发下的上转换荧光光谱,得到了反蛋白石结构的光子带隙位置以及上转换光谱.由于带隙位置与激发光源位置的重合,与粉末样品的上转换光谱相比,反蛋白石的光谱强度降低,出现了峰位展宽,从而也为光子带隙对于特定电磁波的抑制提供了明显的证据.更多还原

【Abstract】 The synthesis,infiltration into a polystyrene opal and luminescence spectroscopy of BaTiO₃∶Tm 3+ were reported in this paper.A photonic band gap and blue up-conversion photoluminescence were achieved in the synthesized inverted opal,respectively demonstrated by reflection spectrum and emission spectrum excited by 650nm laser source at room temperature.Changes of the emission spectroscopy compared with the thulium doped barium titanate reference sample were observed and thus provided evidence for the light inhibition effect of the photonic structure.更多还原