摘要
为了提高Sm^(3+)在CaMgSiO_(4)中的发光性能,采用高温固相法制备了Li^(+)作为电荷补偿剂掺入CaMgSiO_(4)∶Sm^(3+)的硅酸盐发光材料。实验结果表明,所制备的CaMgSiO_(4)∶x Sm^(3+),y Li^(+)样品均为纯相,Sm^(3+)和Li^(+)的掺入并没有导致晶体结构的改变。在400 nm近紫外波长激发下,CaMgSiO_(4)∶Sm^(3+)的发射峰分别位于562、576、601、650 nm处,这是由Sm^(3+)的4f-4f跃迁引起的。此外,从共掺杂样品的光谱中可以看出Li^(+)的掺入明显提高了Sm^(3+)的发光强度和发射峰积分面积。荧光粉的色坐标在红色区域(0.605,0.394)且色纯度高达93.3%。当温度升到150℃时,发射峰的峰值强度保持在室温时的73.5%,这表明该荧光粉具有较好的热稳定性。以上结果表明,该荧光粉在固体照明领域具有潜在的应用前景。
We prepared Li^(+)as a charge compensator using the high-temperature solid-state method and doped it into the silicate matrix of CaMgSiO_(4)∶Sm^(3+)to improve the luminescence properties of Sm^(3+)in CaMgSiO_(4).The experimental results show that the CaMgSiO_(4)∶x Sm^(3+),y Li^(+)samples are pure phases,and introducing Sm^(3+)and Li^(+)do not change the crystal structure.Under the excitation of the near-ultraviolet of 400 nm caused by the 4f-4f transition of Sm^(3+)ions,the emission peaks of CaMgSiO_(4)∶Sm^(3+)are 562,576,601,and 650 nm respectively.Additionally,from the spectra of codoped samples,incorporating Li^(+)significantly enhances the luminescence intensity and emission peak integral area of Sm^(3+).Moreover,the color coordinates of the samples are in the red region(0.605,0.394)and the color purity is up to 93.3%.At 150℃,the peak intensity remains at 73.5% of that at room temperature,indicating that the phosphor has good thermal stability.The phosphor has a potential application prospect in solid lighting.
作者
阿依努热木·吐尔逊
王磊
苏比伊努尔·吉力力
艾尔肯·斯地克
Tuerxun·Ayinuremu;Wang Lei;Jilili·Subiyinuer;Sidike·Aierken(School of Physics and Electronic Engineering,Xinjiang Normal University,Urumqi 830054,Xinjiang,China;Xinjiang Key Laboratory for Luminescence Minerals and Optical Functional Materials,Urumqi 830054,Xinjiang,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2022年第13期319-326,共8页
Laser & Optoelectronics Progress
基金
新疆唯吾尔自治区高校科研计划项目(XJEDU2017I009)
新疆师范大学校级科研平台招标课题(KWFG2005)。
