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首页> 外文期刊>Optical Materials >Radioluminescence as a function of temperature and low temperature thermoluminescence of BaY2F8:Ce and BaY2F8:Nd crystals
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Radioluminescence as a function of temperature and low temperature thermoluminescence of BaY2F8:Ce and BaY2F8:Nd crystals

机译:BaY2F8:Ce和BaY2F8:Nd晶体的辐射发光与温度和低温热发光的关系

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摘要

Radioluminescence spectra at temperatures ranging from 10 to 320 K and low temperature thermoluminescence glow curves of BaY2F8:Ce and BaY2F8:Nd scintillator crystals have been investigated. In both materials the intensities of the excitonic and the activator ion's emission at X-ray excitation vary with temperature, anticorrelating with each other, which provides valuable information on the host-to-ion energy transfer. Detailed thermoluminescence studies, in turn, prove the existence of charge traps, which introduce quasi-continuous distributions of energy levels into the bandgap. (C) 2016 Elsevier B.V. All rights reserved.
机译:研究了BaY2F8:Ce和BaY2F8:Nd闪烁体晶体在10至320 K范围内的辐射发光光谱和低温热发光辉光曲线。在这两种材料中,在X射线激发下,激子强度和活化剂离子的发射强度都随温度而变化,并且彼此反相关,这提供了有关主体离子能量转移的有价值的信息。反过来,详细的热致发光研究证明了电荷陷阱的存在,电荷陷阱将能级的准连续分布引入到带隙中。 (C)2016 Elsevier B.V.保留所有权利。

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