【摘 要】
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A red emitting K2TiF6:Mn4+phosphorwas synthesized using the cation exchange method,and the effects of ball-milling speed on the properties of the red phosphor were systematically investigated.The crys
【机 构】
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Research Institute for New Materials Technology,Chongqing University of Arts and Sciences,Yongchuan
【出 处】
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第八届中国功能玻璃学术研讨会暨新型光电子材料国际论坛
论文部分内容阅读
A red emitting K2TiF6:Mn4+phosphorwas synthesized using the cation exchange method,and the effects of ball-milling speed on the properties of the red phosphor were systematically investigated.The crystalline phase,morphology and photoluminescence properties werecharacterized by using X-ray diffraction(XRD),photoluminescence(PL)spectra,and scanning electronmicroscope(SEM),respectively.The XRD results show that with theincrease of ball-milling speed,the intensity of the characteristic peaks changes,and except the K2TiF6 phase that no other impurity phase.Further,the average particle size of the powders decreases with the increasing speed,and the agglomeration is also aggravated(Fig.1).Because ofthe decrease of particle size,the emission intensity decreases,but the emission spectrum of the sampleshas no shift.Specially,the intensity at the maximum when the speed is 100 r/min(Fig.2).
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