TbP_5O_（14）非晶体及其掺杂后的喇曼光谱

Raman Spectra in Noncrystalline TbP_5O_(14)and its Doped Sample

报道了ＴｂＰ＿５Ｏ＿（１４）非晶材料及其掺入Ｇｄ￣（３＋）和Ｐｒ￣（３＋）之后的喇曼光谱．讨论了掺杂稀土离子对分子键结构和光学性能的影响．实验结果表明３２５ｃｍ￣（－１）线的主要贡献者是ＲＥ－０键．掺杂稀土离子并不取代Ｔｂ￣（３＋），而是和形成新的ＲＥ－０键．

The observed Ramen spectra in noncrystalline TbP_5O_(14) and TbP_5O_(14): Gd￣(3+),Pr￣(3+) are reported. The effects of dopings on the structure of molecular bonds and optical perfor-mance were discussed. The experimental results show that the major contribution to 325 cm￣(-1)line is made by RE-O bond.The doped rare-earth ion does not replace Tb￣(3+),but forms new RE_O bond with .