【摘要】 采用共沉淀法制备前驱体,再加入助熔剂煅烧合成Gd2O2S∶Tb荧光粉,并对制备的荧光粉样品的晶体结构及发光性能进行了系统研究。结果表明:助熔剂的选择对Gd2O2S∶Tb荧光粉合成影响显著;当L i2CO3与L i3PO4添加量的摩尔比为2∶1时发光亮度最大,且颗粒分布较均匀;当助熔剂的质量分数为0.35时发光性能最好。更多还原

【Abstract】 Synthesis of the terbium activated gadolinium oxysulfide phosphor（Gd₂O₂S∶Tb） by the flux method was presented.Effects of flux composition on firing schedule especially the firing time was studied.The brightness of Gd₂O₂S∶Tb phosphor can be enhanced and size distribution also be controlled by various flux composition and content.The optimal fluxes include Na₂CO₃,K₂CO₃,Li₃PO₄ and Li₂CO₃ with the mass fraction of 0.35.As the mole ratio of the lithium phosphate and lithium carbonate is（1∶2）,relative brightness and particle size distribution are improved remarkably.更多还原