摘要
通过高温固相法合成了Ca_(3)La_(1.96)(BO_(3))_(4):0.04Pr^(3+)荧光粉。通过X射线衍射(XRD)确定了样品的晶体结构,通过激发光谱和发射光谱对样品发光性能进行了研究。X射线衍射测试结果表明,样品已经成相。光谱测试结果表明,在449 nm、473 nm和485 nm光的激发下,样品的发射谱峰位于607 nm附近,这归因于Pr^(3+)的^(1)D_(2)→^(3)H_(4)跃迁。监测607 nm时,样品的激发谱由位于320~400 nm的宽激发带和分别位于449 nm、473 nm和485 nm处的窄激发峰组成。位于449 nm、473 nm和485 nm处的激发峰分别归因于Pr^(3+)的^(3)H_(4)→^(3)P_(2)、^(3)H_(4)→^(3)P_(1)、^(3)H_(4)→^(3)P_(0)吸收跃迁。Ca_(3)La_(1.96)(BO_(3))_(4):0.04Pr^(3+)荧光粉是一种可被紫外光和可见光激发的新型红光荧光粉。
Ca_(3)La_(1.96)(BO_(3))_(4):0.04Pr^(3+)phosphor was synthesized by high temperature solid state reaction.The crystal structure of the sample was determined by X-ray diffraction,and the luminescence properties of the sample were studied by excitation and emission spectra.The result of X-ray diffraction shows that the sample’s phase has formed.The spectra measurements show that the emission peak of the sample lies near 607 nm under the excitation of 449 nm,473 nm and 485 nm,which is attributed to the^(1)D_(2)→^(3)H_(4)transition of Pr^(3+).When monitoring 607 nm,the excitation spectrum consists of a wide excitation band at 320 to 400 nm and narrow excitation peaks at 449 nm,473 nm,and 485 nm,respectively.The excitation peaks at 449 nm,473 nm and 485 nm are attributed to the^(3)H_(4)→^(3)P_(2)、^(3)H_(4)→^(3)P_(1)、^(3)H_(4)→^(3)P_(0)transitions of Pr^(3+),respectively.The Ca_(3)La_(1.96)(BO_(3))_(4):0.04Pr^(3+)phosphor is a new red phosphor that can be excited by ultraviolet and visible light.
作者
娄文静
孙晓园
LOU Wenjing;SUN Xiaoyuan(College of Physics,Changchun Normal University,Changchun,Jilin 130032,China)
出处
《信息记录材料》
2023年第2期13-15,共3页
Information Recording Materials
