荧光粉
发光
光致发光
能量转移
离子
材料科学
猝灭(荧光)
分析化学(期刊)
场发射显示器
荧光
光电子学
化学
阳极
光学
物理化学
化学物理
物理
电极
有机化学
色谱法
作者
Junpeng Xue,Hyeon Mi Noh,Byung Chun Choi,Sung Heum Park,Junghwan Kim,Jung Hyun Jeong,Peng Du
标识
DOI:10.1016/j.cej.2019.122861
摘要
Using solid-state reaction technique, we prepared a series of Bi3+/Eu3+-activated GdNbO4 phosphors. Under 308 nm excitation, the energy transfer from Bi3+ to Eu3+ ions, which belonged to the dipole-quadrupole interaction mechanism, allowed the GdNbO4:Bi3+,Eu3+ compounds to display tunable multi-color emissions. The temperature dependent photoluminescence emission and water resistance behaviors of the obtained samples were investigated in detail. Taking full advantage of the diverse thermal quenching performance between Bi3+ and Eu3+ ions along with their distinct characteristic color emission, we designed a highly sensitive non-invasion optical thermometer. The maximum absolute and relative sensor sensitivities of the final compounds were about 0.0367 K−1 and 3.81% K−1, respectively. Moreover, the as-prepared phosphors exhibited excellent cathode-luminescence properties. These above characteristics indicated that Bi3+/Eu3+-activated GdNbO4 phosphors can be used as potential luminescent materials for non-contact temperature measurement and field emission display.
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