Structural and photoluminescence properties of Eu~(3+) activated ZnAI_2O_4 orange-red phosphor

Sanjay Kumar Pathak; Akshkumar Verma; Ashish Verma

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Structural and photoluminescence properties of Eu~(3+) activated ZnAI_2O_4 orange-red phosphor

机译：Eu〜（3+）的结构和光致发光性能活性Znai_2O_4橙红磷光体

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Europium doped zinc aluminum oxide (Zn_(0.93)Al_2O_4:Eu_(0.07)) was successfully prepared by a combustion method at 550 °C, in which urea, glycine, urea-glycine, citric acid, carbohydrazide, tartaric acid, carbohydrazide-glycine, oxalic acid-glycine, and tetraformaltrisazine were used as a fuel (complexing reagents). The structural and morphological properties were measured and elemental analysis carried out using X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM and TEM) and energy-dispersive X-ray (EDX), respectively. The photoluminescence (PL) spectra were monitored by excitation spectra (λ_(ex). = 378 nm) and emission spectra (λ_(em). =614 nm), to assess various complexing reagents in which urea was found to be the most efficient for synthesizing ZnAl_2O_4:Eu~(3+)orange-red phosphor. The discussed zinc aluminate (U-1) phosphor has a higher luminescence intensity at 614 nm. It is concluded, therefore, that the ZnAl_2O_4:Eu phosphor can be used widely in various solid-state lighting as an orange-red phosphor.

机译：铕掺杂氧化锌（Zn_（0.93）Al_2O_4：Eu_（0.07））通过燃烧方法在550℃下成功制备，其中尿素，甘氨酸，尿素 - 甘氨酸，柠檬酸，碳水化肼，酒石酸，碳水化肼 - 甘氨酸，草酸 - 甘氨酸和四甲甲酰胺用作燃料（络合试剂）。测量结构和形态学性质，并使用X射线衍射（XRD），扫描和透射电子显微镜（SEM和TEM）和能量分散X射线（EDX）进行元素分析。通过激发光谱监测光致发光（PL）光谱（λ_（ex）。= 378nm）和发射光谱（λ_（em）。= 614nm），以评估各种络合试剂，其中发现尿素是最有效的用于合成ZNAL_2O_4：EU〜（3+）橙红磷光体。讨论的锌铝酸锌（U-1）磷光体在614nm处具有更高的发光强度。因此，Znal_2O_4：Eu磷光体可以广泛用于各种固态照明作为橙红色磷光体。

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来源
《Journal of materials science》 |2020年第19期|16137-16149|共13页
作者
Sanjay Kumar Pathak; Akshkumar Verma; Ashish Verma;
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作者单位

Department of Physics Dr. Harisingh Gour Vishwavidyalaya Sagar MP 470003 India;

Department of Physics Dr. Harisingh Gour Vishwavidyalaya Sagar MP 470003 India;

Department of Physics Dr. Harisingh Gour Vishwavidyalaya Sagar MP 470003 India;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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Structural and photoluminescence properties of Eu~(3+) activated ZnAI_2O_4 orange-red phosphor

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