提出一种Er3+改进的电子俘获光存储材料SrS∶Eu0.002, Sm0.002, Erx, 其中, 0≤ x ≤0.006。通过水热反应, 研究了不同退火温度对荧光粉晶相形成的影响, 以及不同含量的Er3+对荧光粉的发光性质以及光存储特性的影响。结果表明, Er3+的引入导致荧光增强及光存储特性提高。当Er3+的摩尔分数x=0.003时, 荧光强度、光激励发光强度及光存储量出现最大值, 分别为不含Er3+时的1.9倍、2倍和3.5倍。同时, Er3+的掺入不改变样品的晶体结构和衰减特性。

Er modified electron trapping optical storage materials SrS∶Eu0.002, Sm0.002, Erx are prepared by hydrothermal method. The effect of temperature on crystal phase formation, Er content on optical storage and luminescence properties are studied. It is revealed that the Er induced luminescent enhancement and the optical storage properties improved. The maximum luminescence intensity, Photostimulated luminescence intensity and optical storage are obtained at x=0.003, which is as high as 1.9 times, 2 times and 3.5 times of the Er free phosphor, respectively. The introduction of Er didnt change the crystal structure and Photostimulated luminescence decay curve properties of the sample. The photostimulated luminescence decay curve can be will-fitted into a double exponential function.