论文部分内容阅读
利用高温固相烧结法制备了Sm3+掺杂的BaBPO5材料。利用X射线粉末衍射和Fourier红外光谱测试和分析晶体结构。通过两种方法实现了Sm3+到Sm2+的还原:一是在还原气氛中制备Sm2+掺杂的BaBPO5材料;二是利用X射线照射还原手段得到Sm2+。结果表明:在X射线的照射下,可有效地实现在BaBPO5基质中Sm3+→Sm2+的还原。发光和衰减测试效果表明:利用两种方法得到的Sm2+具有不同的发光特性。对Sm2+的发光稳定性和缺陷结构进行了分析:在488nm的Ar+激光照射下,两种方法得到的Sm2+的发光强度均降低,即均具有光漂白作用,在BaBPO5之中Sm2+的发光和稳定性强烈地依赖于其制备方法。
Sm3 + doped BaBPO5 materials were prepared by high temperature solid state sintering. X-ray powder diffraction and Fourier transform infrared spectroscopy were used to test and analyze the crystal structure. The reduction of Sm3 + to Sm2 + is achieved by two methods: one is to prepare Sm2 + -doped BaBPO5 material in a reducing atmosphere; the other is to obtain Sm2 + using X-ray irradiation reduction. The results show that the reduction of Sm3 + → Sm2 + in BaBPO5 matrix can be achieved effectively by X-ray irradiation. Luminescence and attenuation test results show that: Sm2 + obtained by the two methods have different luminescence properties. The luminescent stability and defect structure of Sm2 + were analyzed. The luminescence intensity of Sm2 + obtained by the two methods decreased with the Ar + laser irradiation at 488nm, that is, both had photobleaching. The luminescence and stability of Sm2 + in BaBPO5 Strongly depends on its preparation method.