Efficient red-luminescence of CaLa2ZnO5 phosphors co-doped by Ce(3+)and Eu3+ ions

Kumar K. Naveen; Vijayalakshmi L.; Choi Jungwook; Kim Jong Su

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Efficient red-luminescence of CaLa2ZnO5 phosphors co-doped by Ce(3+)and Eu3+ ions

机译：Ce（3+）和Eu3 +离子共掺杂的Cala2ZnO5磷光体的高效红发

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Individually and doubly doped Ce3+/Eu3+:CaLa2ZnO5 (CLZO) phosphors were synthesized by a conventional sol-gel method as highly efficient luminescence-based phosphor materials. X-ray diffraction and field-emission scanning electron microscope were used to analyze the structural and morphological properties. The elements and their ionic states were determined by energy-dispersive spectroscopy and X-ray photoelectron spectroscopy studies, respectively. The assignment of the functional groups was analyzed using Fourier-transform infrared spectral studies. Bright red emission was obtained from Eu3+-doped CLZO phosphors due to its hypersensitive transition of D-5(0)-> F-7(2) at 626 nm with a royal blue excitation source. By increasing the Eu3+ content, the emission features were rapidly enhanced. Moreover, the red emission related to Eu3+ was further increased by the addition Ce3+ ions as a co-dopant along with Eu3+ in the CLZO matrix due to energy transfer. The energy migration from Ce3+ to Eu3+ is systematically illustrated by several fluorescent approaches, such as photoluminescence analysis, spectral overlap, CIE coordinates, lifetime dynamics, luminescence quantum yields, and color purity. Surprisingly, the CIE coordinates were very close to the NTSC coordinate values. Based on the results, these phosphors could be suitable materials for luminescence-based optoelectronic devices. (C) 2019 Elsevier B.V. All rights reserved.

机译：通过以常规的溶胶方法作为高效的基于发光的荧光体材料，合成单独和双掺杂Ce3 + / Eu3 +：Cala2ZnO5（Clzo）磷光体。 X射线衍射和现场 - 发射扫描电子显微镜用于分析结构和形态学性质。通过能量分散光谱和X射线光电子能谱研究确定元素及其离子状态。使用傅里叶变换红外光谱研究分析官能团的分配。由于其在626nm的626nm的过敏转变，从Eu3 + - 掺杂的Clzo磷光体获得亮红色发射，其具有皇家蓝色激发源的626nm。通过增加EU3 +含量，排放特征迅速增强。此外，由于能量转印，通过加入CE3 +离子作为共掺杂剂，进一步增加与Eu3 +相关的红色发射。通过几种荧光方法，例如光致发光分析，光谱重叠，CIE坐标，寿命动力学，发光量子产量和颜色纯度来系统地系统地示出了从CE3 +至EU3 +的能量迁移。令人惊讶的是，CIE坐标非常接近NTSC坐标值。基于该结果，这些磷光体可以是用于发光的光电器件的合适材料。（c）2019 Elsevier B.v.保留所有权利。

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《Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics》 |2019年第2019期|共9页
作者
Kumar K. Naveen; Vijayalakshmi L.; Choi Jungwook; Kim Jong Su;
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作者单位

Yeungnam Univ Sch Mech Engn Gyongsan 38541 Gyeongbuk South Korea;

Yeungnam Univ Dept Automot Engn Gyongsan 38541 Gyeongbuk South Korea;

Yeungnam Univ Sch Mech Engn Gyongsan 38541 Gyeongbuk South Korea;

Yeungnam Univ Dept Phys Coll Sci SNRL Gyongsan 38541 Gyeongbuk South Korea;

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正文语种 eng
中图分类合金学与各种性质合金;金属材料;
关键词
Co-doping; Phosphor; Energy migration; Photoluminescence; CIE coordinates;

机译：共掺杂;磷;能量迁移;光致发光;CIE坐标;

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1. Efficient red-luminescence of CaLa2ZnO5 phosphors co-doped by Ce(3+)and Eu3+ ions [J] . Kumar K. Naveen, Vijayalakshmi L., Choi Jungwook, Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2019,第期

机译：Ce（3+）和Eu3 +离子共掺杂的Cala2ZnO5磷光体的高效红发
2. Efficient visible upconversion luminescence in Er~(3+) and Er~(3+)/Yb~(3+) co-doped Y_2O_3 phosphors obtained by solution combustion reaction [J] . Vijay Singh, P. Haritha, V. Venkatramu, Spectrochimica acta, Part A. Molecular and biomolecular spectroscopy . 2014,第Null期

机译：固溶燃烧反应获得的Er〜（3+）和Er〜（3 +）/ Yb〜（3+）共掺杂Y_2O_3荧光粉的有效可见上转换发光
3. Efficient monochromatic red, green, and blue up-converted luminescence from Yb~(3+)-doped micro-phosphors co-doped with Er~(3+) or Tm~(3+) ions [J] . Congji Zha, Peter Osvath, Anton Launikonis Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics . 2014,第Null期

机译：掺有Er〜（3+）或Tm〜（3+）离子的掺Yb〜（3+）的微磷光体的高效单色红，绿和蓝上转换发光
4. Up-Conwersion Luminescence Properties of Ho~(3+) Doped and Yb~(3+)/Ho~(3+) Co-Doped Y_2WO_6 Phosphors [C] . Xue-dong Gao, Deng-hui Xu, Yao-hui Zhu Functional Material Technology and Industry Forum . 2017

机译：Ho〜（3+）掺杂和Yb〜（3 +）/ ho〜（3+）共掺杂Y_2WO_6磷光体的升上的发光性能
5. Photoluminescence of praseodymium(3+)-doped calcium titanate phosphor [D] . Rivera Figueroa, Iris 2001

机译：镨（3 +）掺杂钛磷酸钙的光致发光
6. Blue-Light-Excited Eu3+/Sm3+ Co-Doped NaLa(MoO4)2 Phosphors: Synthesis Characterizations and Red Emission Enhancement for WLEDs [O] . Man Yan, Guanghui Liu, Jiahao Wen, 2018

机译：蓝光激发Eu3 + / Sm3 +共掺杂NaLa（MoO4）2荧光粉：WLED的合成表征和红色发射增强
7. Efficient oxide phosphors for light upconversion; Green emission from Yb³⁺ and Ho³⁺ co-doped Ln₂BaZnO₅ (Ln = Y, Gd) [O] . Etchart, Isabelle, Hernández, Ignacio, Huignard, Arnaud, 2011

机译：用于光转换的高效氧化物荧光粉; Yb ^{3 + 和Ho ^{3 + 共掺杂Ln _{2 BaZnO _{5 （Ln = Y， GD）}}}}

Efficient red-luminescence of CaLa2ZnO5 phosphors co-doped by Ce(3+)and Eu3+ ions

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