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首页> 外文期刊>Journal of materials science >Studies on the luminescence behavior of SrCaMgSi_2O_7:Eu~(3+) phosphor by solid state reaction method
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Studies on the luminescence behavior of SrCaMgSi_2O_7:Eu~(3+) phosphor by solid state reaction method

机译：固态反应法研究SrCaMgSi_2O_7：Eu〜（3+）荧光粉的发光行为

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摘要

A new orange-red europium doped strontium calcium magnesium di-silicate (SrCaMgSi_2O_7:Eu~(3+)) phosphor was prepared by the traditional high temperature solid state reaction method. The tetragonal structure of the orange-red compound was confirmed by the X-ray diffraction (XRD) technique. An energy dispersive X-ray spectroscopy (EDS) confirms the presence of elements in sintered phosphor. The thermoluminescence (TL) kinetic parameters such as activation energy, order of kinetics and frequency factor was calculated by peak shape method. In this work, the orange-red emission originated from the ~5D_0-~7F_J (J = 0, 1,2, 3, 4) transitions of Eu~(3+) ions could clearly be observed after sample was excited at 396 nm. Commission International de I'Eclairage color chromatic-ity diagram, TL spectra and ML spectra confirms the prepare SrCaMgSi_2O_7:Eu~(3+) phosphor exhibits orange-red emission. The mechanoluminescence (ML) intensity of SrCaMgSi_2O_7:Eu~(3+) phosphor increases linearly with increasing impact velocity of the moving piston which suggests that this phosphor can be used as sensors to detect the stress of an object. Thus, the present investigation indicates the piezo-electricity was responsible to produce ML in prepared SrCaMgSi_2O_7:Eu~(3+) phosphor.
机译：采用传统的高温固态反应方法制备了一种新的橙红euro掺杂锶钙镁二硅酸盐（SrCaMgSi_2O_7：Eu〜（3+））荧光粉。通过X射线衍射（XRD）技术确认了橙红色化合物的四方结构。能量色散X射线光谱（EDS）证实了烧结磷光体中元素的存在。通过峰形法计算了热致发光（TL）动力学参数，例如活化能，动力学顺序和频率因子。在这项工作中，在396 nm激发样品后，可以清楚地观察到Eu〜（3+）离子的〜5D_0-〜7F_J（J = 0，1,2，3，4）跃迁引起的橙红色发射。 。国际照明委员会彩色色度图，TL光谱和ML光谱证实制备的SrCaMgSi_2O_7：Eu〜（3+）荧光粉呈现橘红色发射。随着运动活塞的撞击速度的增加，SrCaMgSi_2O_7：Eu〜（3+）荧光粉的机械发光强度（ML）呈线性增加，这表明该荧光粉可用作传感器来检测物体的应力。因此，本研究表明压电是在制备的SrCaMgSi_2O_7：Eu〜（3+）荧光粉中产生ML的原因。

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  • 来源
    《Journal of materials science》 |2016年第2期|1828-1839|共12页
  • 作者

    Ishwar Prasad Sahu; D. P. Bisen; N. Brahme; Raunak Kumar Tamrakar;

  • 作者单位

    School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur, C.G. 492010, India;

    School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur, C.G. 492010, India;

    School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University, Raipur, C.G. 492010, India;

    Department of Applied Physics, Bhilai Institute of Technology, Durg, C.G. 491001, India;

  • 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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