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采用高温固相法合成KGd(WO4)2:Sm3+荧光粉,样品在近紫外区404nm光激发下发射出Sm3+的特征光谱.通过X射线粉末衍射、荧光光谱等对其进行了表征,并分析了其发光特性,结果表明:在KGd(WO4)2:Sm3+中Sm3+离子最佳的掺杂量为5%(摩尔分数);烧结温度为1 000℃、助熔剂H3BO3的浓度为2%(摩尔分数)时,样品的发光强度最强.
The KGd (WO4) 2: Sm3 + phosphor was synthesized by solid-state reaction at high temperature, and the characteristic spectrum of Sm3 + was detected by excitation at 404nm in the near ultraviolet region.The powder was characterized by X-ray powder diffraction and fluorescence spectroscopy The results show that the optimal doping amount of Sm3 + ions in KGd (WO4) 2: Sm3 + is 5% (mole fraction), the sintering temperature is 1 000 ℃ and the concentration of H3BO3 is 2% (mole fraction ), The strongest luminous intensity of the sample.