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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >On the theoretical basis for the duplicitous thermoluminescence peak
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On the theoretical basis for the duplicitous thermoluminescence peak

机译：在理论上为双热发光峰

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The simultaneous release of electrons and holes by what seems to be a single trap has been observed experimentally. We previously performed numerical simulations on a phenomenological model which showed similar behaviour. Here, we provide an analytical solution to this model. This model explains trends in radioluminescence, thermoluminescence and thermally stimulated conductivity of a material with one electron trap, one hole trap and one radiative recombination centre, in which thermal excitation of the electron trap occurs before that of the hole trap. It is shown that TL emission due to electron recombination at centres can be controlled by a hole trap and the electron recombination will have a peak shape associated with the hole trap’s parameters. When this happens, the peaks in free electron concentration, free hole concentration and TL all occur nearly simultaneously. The analytical model allows this to be explained along with scaling laws and initial rise behaviour. Under the conditions illustrated by this model, the usual methods used to distinguish between electron traps and hole traps will give incorrect results.
机译：实验上已经观察到似乎是单个陷阱的电子和空穴的同时释放。我们以前对现象模型进行了数值模拟，该模型显示出类似的行为。在这里，我们为该模型提供了一种解析解决方案。该模型解释了具有一个电子陷阱，一个空穴陷阱和一个辐射复合中心的材料的放射性发光，热致发光和热激发电导率的趋势，其中电子陷阱的热激发发生在空穴陷阱的热激发之前。结果表明，由于中心的电子复合而产生的TL发射可以通过空穴陷阱来控制，并且电子重组将具有与空穴陷阱的参数相关的峰形。发生这种情况时，自由电子浓度，自由空穴浓度和TL的峰值几乎同时出现。分析模型可以对此进行解释，并附带比例定律和初始上升行为。在此模型说明的条件下，用于区分电子陷阱和空穴陷阱的常用方法将给出错误的结果。

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