【摘要】 采用高温固相法制备SrAl2O4:Eu2+,Dy3+长余辉发光材料。借助材料的发射光谱、激发光谱,分析研究活性炭装法和活性炭含量对SrAl2O4:Eu2+,Dy3+发光材料发光性能的影响。结果表明:活性炭作为一种还原剂,装法和含量的变化能改变发光材料的发射光谱和激发光谱,活性炭覆盖在前躯体表面加热所制得样品的发光效果好,当活性炭含量为12%~20%时,所制得的样品具有质地疏松、发光强度好等特点。更多还原

【Abstract】 The Long afterglow luminescent material SrAl2O4: Eu2+,Dy3+ was prepared by high temperature solid-state method.Effects of activated carbon and its content on the luminescent properties of SrAl2O4: Eu2+,Dy3+ were studied by means of emission spectra and excitation spectra.As a reductant,the addition of activated carbon change the wavelength of emission peak and excitation peak of SrAl2O4: Eu2+,Dy3+,and luminescent property of the sintered phosphor covered with activated carbon was stronger.The sample phosphor with activated carbon content of 12%~20% was loosen and had better luminescent strength.更多还原