Enhanced cathodoluminescence of green β-sialon:Eu2+ phosphor by In2O3 coating
作者： Yujie Zhao , Rong-Jun Xie , Benjamin Dierre , Takashi Takeda , Takashi Sekiguchi
DOI: 10.1016/J.JALLCOM.2017.08.255
关键词:
摘要: Abstract The β-sialon:Eu 2+ phosphor has superior luminescent properties as an excellent green down-conversion material for white light-emitting diodes. To take advantage of its high chromaticity and apply it to field emission displays (FEDs), the drawback electron insulation that impedes transmission when excited by e-beam needs be solved. In this work, a facile method was adopted coat conductive 2 O 3 on surface phosphor, influence coating cathodoluminescent investigated. results show contributes charge elimination significantly improves cathodoluminescence (CL) . Under 19 kV/1.0 nA excitation, coated sample shows CL intensity about four times higher than uncoated Moreover, no luminescence saturation occurs in , indicating -coated would promising emissive full-color FEDs.
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