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Effect of lanthanide ion co-doping on the luminescence in the cerium-doped zinc oxide-phosphor system
Spectroscopy Letters ( IF 1.7 ) Pub Date : 2019-09-14 , DOI: 10.1080/00387010.2019.1659824
Bhagyalekshmi Gopalakrishna Pillai Leela 1 , Deepthi N. Rajendran 1
Affiliation  

Abstract Novel cerium, praseodymium doped, and co-doped zinc oxide nanophosphors were prepared by a solid-state reaction method. The nanopowders were characterized using X-ray diffraction, energy dispersive spectroscopy, transmission electron microscopy, scanning electron microscopy, Fourier transform infrared spectroscopy, UV-visible, and photoluminescence. X-ray diffraction results showed high crystalinity in the nanoscale. Emission spectra of both doped and co-doped samples lay in the bluish green region. Color chromaticity co-ordinates were estimated for the Praseodymium co-doped nanophosphor. It was shown that optical emission could be modified by adding praseodymium into the cerium doped zinc oxide lattice. This work demonstrates that luminescence enhancement in zinc oxide is possible by introducing rare earth ions, and the resulting materials may have promise for lighting applications.

中文翻译:

镧系离子共掺杂对铈掺杂氧化锌-荧光粉体系发光的影响

摘要 采用固态反应法制备了新型铈、镨掺杂和共掺杂氧化锌纳米磷光体。使用 X 射线衍射、能量色散光谱、透射电子显微镜、扫描电子显微镜、傅里叶变换红外光谱、紫外-可见光和光致发光对纳米粉末进行表征。X 射线衍射结果显示纳米级的高结晶度。掺杂和共掺杂样品的发射光谱位于蓝绿色区域。估计镨共掺杂纳米磷光体的颜色色度坐标。结果表明,可以通过将镨添加到铈掺杂的氧化锌晶格中来改变光发射。这项工作表明,通过引入稀土离子,氧化锌的发光增强是可能的,
更新日期:2019-09-14
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