光谱学与光谱分析, 2017, 37 (3): 723, 网络出版: 2017-06-20
SrBPO5∶Dy3+荧光粉的制备及光谱性能研究
Preparation and Study on the Spectral Properties of SrBPO5∶Dy3+ Phosphor
激发光谱 发射光谱 掺杂浓度 电荷补偿剂 SrBPO5∶Dy3+ SrBPO5∶Dy3+ Excitation spectra Emission spectra Doping concentration Charge Compensator
摘要
通过高温固相法制备了用于紫外激发的系列SrBPO5∶Dy3+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SrBPO5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Dy3+浓度, Mg2+加入量, 烧结温度以及电荷补偿剂对发射光谱的影响。 当Dy3+掺杂摩尔浓度为4 mol%时发光强度最强; 随着Mg2+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。
Abstract
A series of SrBPO5∶Dy3+ 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 SrBPO5 phase. The emission spectrum included two emission peaks locating at 485 and 575 nm excited by 388 nm UV light. The influence of Dy3+ ions concentration, Mg2+ ions dosage, sintering temperature and charge compensator on the luminescent properties was studied. The emission intensity reaches the maximum when the concentration of Dy3+ ions is 4 mol%; the ratio of B/Y increases with the amount of Mg2+ ions and Na+ is the optimal charge compensation. 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.
杨勇, 韩越, 关丽, 王皓岩, 李旭, 滕枫. SrBPO5∶Dy3+荧光粉的制备及光谱性能研究[J]. 光谱学与光谱分析, 2017, 37(3): 723. YANG Yong, HAN Yue, GUAN Li, WANG Hao-yan, LI Xu, TENG Feng. Preparation and Study on the Spectral Properties of SrBPO5∶Dy3+ Phosphor[J]. Spectroscopy and Spectral Analysis, 2017, 37(3): 723.