发光学报2013，Vol.34Issue(8)：976-981,6.DOI:10.3788/fgxb20133408.0976
微波场对(Ba,Sr)3MgSi2O8∶Eu2+,Mn2+荧光粉中Mn2+ 660 nm红光能量传递的影响
Effect of Microwave on Energy Transfer of Mn2+ 660 nm-emitting in (Ba, Sr)3MgSi2O8∶ Eu2 + , Mn2 + Phosphor
摘要
Abstract
(Ba,Sr)3MgSi2O8∶Eu2+,Mn2+ phosphor was synthesized by using 2.45 GHz high temperature microwave (MW) at a given firing temperature.The microwave non-thermal effect on the photoluminescence intensity of 660 nm emission was investigated.With an increase of MW power supply to reach an identical holding firing temperature,non-thermal MW effect leads to increasing transition probability of Eu2+ blue emission and indirect transition probability of Mn2+ red band emission with aid of energy transfer from Eu2+ via (Ba,Sr)3MgSi2O8 host lattice.A modified energy level diagram was proposed to address this disturbing issue of MW energy attribute.This non-thermal MW effect suggests that a strong magnetic field may apply a disturbance effect on the structure and transition properties of the paramagnetic ions like Mn activator in microwave firing procedure.关键词
(Ba,Sr)3MgSi2O8∶Eu,Mn/660 nm/能量传递/微波功率Key words
(Ba, Sr)3MgSi2O8∶Eu, Mn / 660 nm/ energy transfer/ microwave power分类
数理科学引用本文复制引用
王龄昌,陆启飞,李建,王达健..微波场对(Ba,Sr)3MgSi2O8∶Eu2+,Mn2+荧光粉中Mn2+ 660 nm红光能量传递的影响[J].发光学报,2013,34(8):976-981,6.基金项目
国家自然科学基金(21076161,50802062,50872091)资助项目 （21076161,50802062,50872091）
