Enhancement of green emission for Al3+-doped YBO3:Tb3+
Enhancement of green emission for Al3+-doped YBO3:Tb3+
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DOI：
10.1016/j.matchemphys.2012.06.067
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发表时间：
2012-09
影响因子：
4.6
通讯作者：
Ka-Young Park;Jong-Goon Kim;K. Kim
中科院分区：
文献类型：
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作者：
Ka-Young Park;Jong-Goon Kim;K. Kim
采用超声波喷雾热解法成功制备出尺寸细小、形貌球形、规则、不团聚的高质量Y1−x−yAlxTbyBO3(0 ≤ x ≤ 0.1, 0.04 ≤ y ≤ 0.16)荧光粉。 Y0.94−xAlxTb0.06BO3 磷光体的 5D3→7FJ（J = 4、5 和 6）跃迁发出的蓝色发射被淬灭。通过将 Al3+ 掺杂到 Y1−yTbyBO3 磷光体中，Tb3+ 的最佳浓度降低，即 Y0.975−yAl0.025TbyBO3 和 Y1−yTbyBO3 的 y = 0.1 和 0.12。 Al3+掺杂对于改善光致发光特性非常有效。掺杂 Al3+ 的 Y0.915Al0.025Tb0.06BO3 荧光粉在 543 nm 处的光致发光发射强度比不含 Al3+ 的 Y0.94Tb0.06BO3 荧光粉强约三倍。
High-quality Y1−x−yAlxTbyBO3(0 ≤ x ≤ 0.1, 0.04 ≤ y ≤ 0.16) phosphor powders with fine size, spherical and regular morphology, and non-agglomeration were successfully prepared by ultrasonic spray pyrolysis. The blue emission from the5D3→7FJ(J = 4, 5, and 6) transition for the Y0.94−xAlxTb0.06BO3phosphor was quenched. The optimal concentration of Tb3+was reduced by doping Al3+into the Y1−yTbyBO3phosphor, i.e., y = 0.1 and 0.12 for Y0.975−yAl0.025TbyBO3and Y1−yTbyBO3, respectively. The Al3+doping was highly effective for improving the photoluminescence characteristics. The photoluminescence emission intensity of the Al3+-doped Y0.915Al0.025Tb0.06BO3phosphor at 543 nm was about three times stronger than that of the Al3+-free Y0.94Tb0.06BO3phosphor.