CAJ | 학술논문

利用高温固相法制备了全色单一白光BaMg2Al6Si9O30∶Eu2＋,Tb3＋,Mn2＋荧光粉。通过对其荧光光谱,能量传递效率,以及荧光寿命的研究,证实了Eu2＋-Mn2＋和Eu2＋-Tb3＋之间存在能量传递。在此体系中,白光由450,540和610 nm的3个谱带组成,分别来源于Eu2＋,Tb3＋,Mn2＋的发射。通过控制Tb3＋/Mn2＋的相对含量,可以得到色坐标为（0.31,0.30）,显色指数为90,色温为5 374 K的白光。因此,该单一白光荧光粉在白光照明领域具有潜在的应用前景。
이용고온고상법제비료전색단일백광BaMg2Al6Si9O30∶Eu2＋,Tb3＋,Mn2＋형광분。통과대기형광광보,능량전체효솔,이급형광수명적연구,증실료Eu2＋-Mn2＋화Eu2＋-Tb3＋지간존재능량전체。재차체계중,백광유450,540화610 nm적3개보대조성,분별래원우Eu2＋,Tb3＋,Mn2＋적발사。통과공제Tb3＋/Mn2＋적상대함량,가이득도색좌표위（0.31,0.30）,현색지수위90,색온위5 374 K적백광。인차,해단일백광형광분재백광조명영역구유잠재적응용전경。
Single-phase white-light emitting phosphors BaMg2Al6Si9O30∶ Eu2＋,Tb3＋,Mn2＋ are synthesized by solid state reaction.The energy transfers from Eu2＋ to Tb3＋ and Eu2＋ to Mn2＋ in BaMg2Al6Si9O30 are demonstrated by fluorescent spectra,energy transfer efficiency and fluorescent life time analysis.The BaMg2Al6Si9O30∶ Eu2＋,Tb3＋,Mn2＋ shows three emitting colors： 450,542 and 610 nm,which are assigned to the contribution from Eu2＋,Tb3＋ and Mn2＋,respectively.By tuning the relative composition of Tb3＋/Mn2＋,chromaticity coordinates of（0.31,0.30）,color rendering index Ra=90 and Correlated Color Temperature（CCT） of 5 374 K can be achieved upon the excitation of UV light.Experimental results indicate that the present phosphor BaMg2Al6Si9O30∶ Eu2＋,Tb3＋,Mn2＋ can serve as potential candidates for light emitting diodes.