高亮度慢衰减夜光粉的研制  

SYNTHESIS OF NIGHT-LUMINOUSPHOSPHORS WITH HIGH LUMINESCENCE ANDSLOW LUMINESCENT DECAY

作　　者：张新[1] 翟玉春[1] 吴顺亭 

机构地区：[1]东北大学

出　　处：《化工冶金》1998年第2期109-112,共4页

摘　　要：在研究ＳｒＡｌ２Ｏ４：Ｅｕ２＋夜光粉的基础上，选出了适合的添加剂，有效地提高了该夜光粉的发光亮度，延长了余辉时间，并得到了发光衰减符合Ｉ＝ｃｔ－ｎ（ｎ＝０．６３４）的余辉衰减曲线．报道了ＢａＡｌ２Ｏ４：Ｅｕ２＋蓝绿色夜光粉的制备及其余辉性能指标．在石墨坩埚的保护下合成了铝酸盐夜光粉，其性能与氢气还原得到的夜光粉接近．Proper additives have been chosen by studying SrAl2 O4 :Eu2+phosphor, and the phosphor's light intensity and luminous decay time have been fully improved. Its luminous decay curve follows I=ct-n( n =0.634). A blue-green emitting BaAl2 O4 :Eu2+phosphor has been produced, and its luminescence property has also been given. A new method of producing phosphors has been developed by protecting raw materials mixture with a graphite crucible, and the luminous property of the phosphor produced by this method approaches to that produced by hydrogen reduction. 

关 键 词：长余辉发光 发光衰减 电子跃迁 电子陷阱 夜光粉 

分 类 号：TQ422[化学工程] TQ628.2