CAJ | 학술논문

BaMgAl10O17:Eu2+(BAM)是三基色荧光灯和等离子显示用荧光粉中的蓝色组分.用晶格弛豫和多声子跃迁理论研究了BAM发射光谱的谱峰分布.结果表明可以用三个高斯函数很好地拟合BAM的宽带发射.BAM的宽带发射可能由分布在BaMgAl10O17晶格中三个不同位置的Eu2+的能级跃迁构成.三个Eu的发光中心分别是Beevers-Ross位和anti-Beevers-Ross 位,第三个Eu2+的发光中心可能是位于尖晶石基块中的mid-oxygen(mo)位.
BaMgAl10O17:Eu2+(BAM)시삼기색형광등화등리자현시용형광분중적람색조분.용정격이예화다성자약천이론연구료BAM발사광보적보봉분포.결과표명가이용삼개고사함수흔호지의합BAM적관대발사.BAM적관대발사가능유분포재BaMgAl10O17정격중삼개불동위치적Eu2+적능급약천구성.삼개Eu적발광중심분별시Beevers-Ross위화anti-Beevers-Ross 위,제삼개Eu2+적발광중심가능시위우첨정석기괴중적mid-oxygen(mo)위.
BaMgAl10O17:Eu2+(BAM) is the blue phosphor component of three-color fluorescent lamps and plasma display panels(PDP).In present paper the emission spectra lineshape of BAM were investigated by using lattice relation and theory of multiphonon transitions.The result indicated that the broadening emission band of BAM can be fitted by three Gaussian functions very well, the transitions from three different site of Eu2+ in the BAM lattice forms the BAM emission spectra, the two of the emission centers are assigned to Eu2+ at normal Beevers-Ross sites and anti-Beevers-Ross sites, respectively, but the third luminescence center may be located at mid-oxygen (mO )sites.