CAJ | 학술논문

经高温固相反应合成YVO4:xEr3+(x=0.001,0.003,0.005,0.007,0.01,0.03,0.05,0.07,0.09,0.1摩尔比)绿色系列粉末状发光材料.经X射线衍射分析产物为单相,属四方锆英石结构.检测了材料的真空紫外激发光谱和发射光谱.发现,YVO4:xEr3+(x=0.001,0.003,……,0.1摩尔比)的真空紫外激发光谱,在120nm～350nm范围内形成若干个连续的带状峰,应该归属于VO3-4离子团的吸收带.在紫外和真空紫外激发下,样品的发射光谱均产生两个明显的锐锋,峰值在523nm和552nm附近,分别对应于Er3+离子的2H1/2→4I15/2,4S3/2→4I15/2跃迁;其中4S3/2→4I15/2的跃迁明显强于2H11/2→15/2.随着Er3+含量X由0.001增加到0.003,YVO4:xEr3+发射光谱强度逐渐增加到最大值,之后随着x继续增加发射光谱强度逐渐下降,呈现明显的浓度猝灭现象.
경고온고상반응합성YVO4:xEr3+(x=0.001,0.003,0.005,0.007,0.01,0.03,0.05,0.07,0.09,0.1마이비)록색계렬분말상발광재료.경X사선연사분석산물위단상,속사방고영석결구.검측료재료적진공자외격발광보화발사광보.발현,YVO4:xEr3+(x=0.001,0.003,……,0.1마이비)적진공자외격발광보,재120nm～350nm범위내형성약간개련속적대상봉,응해귀속우VO3-4리자단적흡수대.재자외화진공자외격발하,양품적발사광보균산생량개명현적예봉,봉치재523nm화552nm부근,분별대응우Er3+리자적2H1/2→4I15/2,4S3/2→4I15/2약천;기중4S3/2→4I15/2적약천명현강우2H11/2→15/2.수착Er3+함량X유0.001증가도0.003,YVO4:xEr3+발사광보강도축점증가도최대치,지후수착x계속증가발사광보강도축점하강,정현명현적농도졸멸현상.