首页> 外文期刊>Radiation Protection Dosimetry >PHOTOLUMINESCENCE,THERMOLUMINESCENCE AND OPTICALLY STIMULATED LUMINESCENCE STUDIES IN ZINC-BASED FLUOROPERVOSKITES
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PHOTOLUMINESCENCE,THERMOLUMINESCENCE AND OPTICALLY STIMULATED LUMINESCENCE STUDIES IN ZINC-BASED FLUOROPERVOSKITES

机译:锌基氟代卵石的光致发光,热致发光和光致发光荧光研究

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摘要

The optically stimulated luminescence, thermoluminescence and photoluminescence in various Cu and Ag doped zinc based fluoropervoskites are studied. In all the samples, photoluminescence of Cu+ and Ag+ is observed which could be attributed to 3d(9)4 s(1)a dagger E - 3d(10) and 4d(9)5 s(1)a dagger E - 5d(10) transitions, respectively. The observed emission is double humped and the main emission band shifts to the lower wavelength side with increasing ionic size of the alkali ion. All the studied fluoropervoskites show reasonable OSL sensitivity. Highest sensitivity is observed for Cu doped ZnNaF3 and is 25% compared to commercial Al2O3:C. Weak thermoluminescence is observed in all samples. In all Ag doped samples the TL peak is observed at 200A degrees C whereas for Cu doped samples peak is observed at 150A degrees C, and correlated with the OSL. The samples show good linear dose response in the 10 mGy-1.2 Gy range and show good reusability characteristics. This study will lead to the development of zinc-based fluoropervoskite phosphors for the radiation dosimetry using OSL.
机译:研究了在各种Cu和Ag掺杂的锌基氟代邻苯二甲酸酯中的光激发发光,热致发光和光致发光。在所有样品中,观察到Cu +和Ag +的光致发光,这可能归因于3d(9)4 s(1)a匕首E-> 3d(10)和4d(9)5 s(1)a匕首E-> 5d(10)转换。观察到的发射被双峰驼峰,并且随着碱离子的离子尺寸增加,主发射带移至较低波长侧。所有研究的含氟高岭土都显示出合理的OSL敏感性。观察到Cu掺杂的ZnNaF3的最高灵敏度,与商用Al2O3:C相比为25%。在所有样品中观察到微弱的热致发光。在所有掺杂Ag的样品中,TL峰均在200A的温度下观察到,而对于掺杂Cu的样品,其峰均在150A的温度下观察到,并与OSL相关。样品在10 mGy-1.2 Gy范围内显示出良好的线性剂量响应,并显示出良好的可重复使用性。这项研究将导致开发用于OSL辐射剂量测定的锌基氟钙钛矿荧光粉。

著录项

  • 来源
    《Radiation Protection Dosimetry》 |2018年第1期|37-42|共6页
  • 作者单位

    Kirti M Doongursee Coll, Mumbai, Maharashtra, India;

    Inst Forens Sci, RT Rd, Nagpur, Maharashtra, India;

    Inst Forens Sci, RT Rd, Nagpur, Maharashtra, India;

    Kirti M Doongursee Coll, Mumbai, Maharashtra, India;

    Kirti M Doongursee Coll, Mumbai, Maharashtra, India;

    Kirti M Doongursee Coll, Mumbai, Maharashtra, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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