Synthesis, structure, and luminescence properties of double perovskites Ba2.9Sr0.1WO6: Eu3+ red emitting phosphor

IF 1.8 4区 物理与天体物理 Q4 CHEMISTRY, PHYSICAL
Arif Ullah, Jinghao Zhuang, Zheng Liu, Xiaozhan Yang, Wenlin Feng
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引用次数: 0

Abstract

Abstract In this work, the phosphors of Eu 3+ ions doped Ba 2.9 Sr 0.1 WO 6 were successfully synthesized by the high-temperature solid-state method. The luminescence properties, including the emission and excitation spectra, fluorescent lifetimes, and CIE chromaticity coordinates were characterized. The crystal structure and composite of the samples were investigated by XRD (X-ray diffraction), and HRTEM (high-resolution transmission electron microscope). The emission spectra consist of the characteristic peak of Eu 3+ excitation at 393 nm; the leading emission peak at 618 nm can be ascribed to the transition of 7 F 0 → 5 L 6 . The optimal red emission is achieved by 2 % Eu 3+ doping. This red Ba 2.9 Sr 0.1 WO 6 : Eu 3+ has good luminescent properties and may have potential application in white LEDs.
双钙钛矿Ba2.9Sr0.1WO6: Eu3+红色发光荧光粉的合成、结构及发光性能
摘要:本文采用高温固相法成功合成了Eu 3+离子掺杂Ba 2.9 Sr 0.1 wo6的荧光粉。表征了材料的发光特性,包括发射光谱、激发光谱、荧光寿命和CIE色度坐标。采用XRD (x射线衍射)和HRTEM(高分辨率透射电镜)对样品的晶体结构和组成进行了研究。发射光谱由393 nm处的eu3 +激发特征峰组成;618 nm处的先导发射峰可归因于7 f0→5 l6的跃迁。掺2%的eu3 +达到了最佳的红发射效果。该红色ba2.9 Sr 0.1 wo6: eu3 +具有良好的发光性能,在白光led中有潜在的应用前景。
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来源期刊
CiteScore
3.00
自引率
5.60%
发文量
81
审稿时长
3.3 months
期刊介绍: A Journal of Physical Sciences: Zeitschrift für Naturforschung A (ZNA) is an international scientific journal which publishes original research papers from all areas of experimental and theoretical physics. Authors are encouraged to pay particular attention to a clear exposition of their respective subject, addressing a wide readership. In accordance with the name of our journal, which means “Journal for Natural Sciences”, manuscripts submitted to ZNA should have a tangible connection to actual physical phenomena. In particular, we welcome experiment-oriented contributions.
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