SrBPO5:Dy^3+荧光粉的制备及光谱性能研究  

Preparation and Study on the Spectral Properties of SrBPO_5:Dy^(3+) Phosphor

作　　者：杨勇[1,2] 韩越[1] 关丽[2] 王皓岩 李旭[2] 滕枫[2] 

机构地区：[1]公路交通安全技术交通行业重点实验室,交通运输部公路科学研究院,北京100088 [2]河北省光电信息材料重点实验室,河北大学物理科学与技术学院,河北保定071002

出　　处：《光谱学与光谱分析》2017年第3期723-727,共5页Spectroscopy and Spectral Analysis

基　　金：国家自然科学基金项目(61205180);公路交通安全技术交通行业重点实验室开放课题项目(2014RST03);河北大学杰出青年基金项目(2012JQ01);河北省首批拔尖人才项目(702800116010)资助

摘　　要：通过高温固相法制备了用于紫外激发的系列SrBPO_5:Dy^(3+)荧光粉,并对样品进行了XRD分析和发光性能测试。结果表明,合成样品为单一相的SrBPO_5材料;在388 nm紫外光激发下,样品的发射光谱包括485和575 nm两个发射峰。研究了Dy^(3+)浓度,Mg^(2+)加入量,烧结温度以及电荷补偿剂对发射光谱的影响。当Dy^(3+)掺杂摩尔浓度为4 mol%时发光强度最强;随着Mg^(2+)的加入量的增加B/Y峰的强度比不断增加;最佳烧结温度为1 100℃;Na^+作为电荷补偿剂效果最佳。该荧光粉有较强的黄色发射峰,可以增强UV激发的白光LED的黄光成分从而提高其穿透雾霾的能力。A series of SrBPO_5：Dy^（3＋） phosphor used for UV excited white LEDs were synthesized with high temperature solid state method.The XRD patterns and luminescent properties were investigated.The results indicated that the sample was single SrBPO_5 phase.The emission spectrum included two emission peaks locating at 485 and 575 nm excited by 388 nm UV light.The influence of Dy^（3＋） ions concentration,Mg^（2＋） ions dosage,sintering temperature and charge compensator on the luminescent properties was studied.The emission intensity reaches the maximum when the concentration of Dy^（3＋） ions is 4 mol%;the ratio of B/Y increases with the amount of Mg^（2＋） ions and Na＋ is the optimal charge compensatioa The results showed that this phosphor has a stronger yellow peak,which can raise the yellow emission and enhance the ability of penetrating haze of UV based high transmission white LED.

关 键 词：SrBPO5：Dy3＋ 激发光谱 发射光谱 掺杂浓度 电荷补偿剂 

分 类 号：O644[理学—物理化学]