论文标题
依赖温度的光致发光：一项理论研究
Temperature-dependent photoluminescence: A theoretical study
论文作者
论文摘要
光致发光（PL）是一种与普通普朗克定律提出的光的化学潜力相关的光物质量子相互作用。在不知道化学势的固有温度依赖性的情况下，普遍的普朗克定律不足以表征PL与T的表征。最近的实验表明，在临界温度下，PL从保守的速率突然转移，伴随着蓝移，转移到热发射。在这里，我们从理论上研究了温度依赖性PL，通过在详细的平衡分析中加入语音相互作用。我们表明，在三级系统中，在快速热化的情况下定义了化学电位和T。我们的解决方案验证了最新的实验并预测了新特征，包括系统的发射率与系统的外部量子效率之间的固有关系，这是由泵和温度定义的通用点以及发射速率固定到任何材料的温度，新的声子引起的淬火机制以及光子光谱的热化。我们的高温发光解决方案与温度主要的所有光子场有关，很重要
Photoluminescence (PL) is a light matter quantum interaction associated with the chemical potential of light formulated by the Generalized Planck's law. Without knowing the inherent temperature dependence of chemical potential, the Generalized Planck's law is insufficient in order to characterize PL vs. T. Recent experiments showed that PL at a critical temperature abruptly shifts from a conserved rate, accompanied by a blue-shift, to thermal emission. Here, we theoretically study temperature dependent PL by including phononic interactions in a detailed balance analysis. We show that in a three-level system, both chemical potential and T are defined in the case of fast thermalization. Our solution validates recent experiments and predicts new features, including an inherent relation between emissivity and external quantum efficiency of a system, a universal point defined by the pump and the temperature where the emission rate is fixed to any material, a new phonon induced quenching mechanism, and thermalization of the photon spectrum. Our high temperature luminescence solution is relevant to and important for all photonic fields where the temperature is dominant
