摘要
该文采用高温固相法制备一种植物补光用蓝绿色Li_(2)Ca_(2)Si_(2)O_(7):Eu^(2+)荧光粉,并对其结构、光谱性能及色度坐标进行表征。结果表明,荧光粉Li_(2)Ca_(2)Si_(2)O_(7):Eu^(2+)加入10%的NH4Cl时的最佳合成温度为900℃,该荧光粉在330 nm的紫外激发下发射光谱位于450~520 nm的宽峰。荧光粉Li_(2)Ca_(2(1-x))Si_(2)O7:2x Eu^(2+)中Eu^(2+)的最佳浓度为0.07,Eu^(2+)离子之间的能量传递机制为电多级相互作用。
In this paper, the green-blue phosphors Li_(2)Ca_(2)Si_(2)O_(7):Eu^(2+) for plant complement light were prepared by high temperature solid phase method, and the structure, spectral performance and chromaticity coordinates were characterized. The results show that the optimal synthesis temperature of phosphor Li_(2)Ca_(2)Si_(2)O_(7):Eu^(2+) with 10% NH_(4)Cl is 900 ℃, and the emission spectrum of the phosphor at 330 nm is located at 450~520 nm broadband. The optimal concentration of Eu2+in Li_(2)Ca_(2(1-x))Si_(2)O_(7):2x Eu^(2+)is 2x=0.07, and the energy transfer mechanism between Eu2+ions is an electric multistage interaction.
出处
《科技创新与应用》
2023年第8期79-81,87,共4页
Technology Innovation and Application
基金
吉林省自然科学基金资助项目(YDZJ202101ZYTS163)。
