CaO-SiO_2-B_2O_3∶Sm_2O_3玻璃的合成及Sm^(3+)发光性质研究

Synthesis of CaO-SiO_2-B_2O_3∶Sm_2O_3 Glasses and Luminescent Properties of Sm^(3+)

用常规的高温合成法合成了CaO-SiO2-B2O3∶Sm2O3玻璃,探讨了玻璃的最佳合成温度、玻璃的吸收光谱,并研究了其发光性质。在CaO-SiO2-B2O3∶Sm2O3玻璃体系中观察到了Sm3+的发射光谱。样品的发射光谱有3个主要荧光发射峰,峰值波长分别为568,605,650nm,其中最强峰为605nm,可见发射起源于Sm3+离子4f电子的f-f跃迁。其中568nm对应于4G5/2→6H5/2跃迁、605nm对应于4G5/2→6H7/2跃迁、650nm对应于4G5/2→6H9/2跃迁,光谱性质表明这种玻璃体系能够把太阳光中的紫外光转换成红光,从而增强红光的发射强度。可以利用这些玻璃的发光性质来制备农用转光玻璃。

CaO-SiO_2-B_2O_3∶Sm_2O_3 glasses were synthesized in air with conventional high temperature process. The optimal temperature of synthesis, the absorption spectrum and the luminescent properties of the glasses were studied. The fluorescence spectrum of Sm^(3+) was observed in CaO-SiO_2-B_2O_3∶Sm_2O_3 glasses. The fluorescence spectrum of the sample has three major emission bands peaking at 568, 605 and 650 nm respectively. The strongest emission band peak at 605 nm. It is concluded that the emissions were ca...