论文标题
STM诱导的电荷分子荧光的多体描述
Many-body description of STM-induced fluorescence of charged molecules
论文作者
论文摘要
扫描隧道显微镜用于研究吸附在氯化钠（NACL）覆盖的金属样品上的模型带电分子（奎诺克酮）的荧光。报告了来自中性和正电物种的荧光，并使用超分辨荧光显微镜进行成像。基于对荧光和电子传输特征的电压，电流和空间依赖性的详细分析，建立了多体激发模型。该模型表明，取决于所用的电压和基础底物的性质，奎诺克酮采用了瞬时的电荷状态。该模型具有通用特征，并解释了许多其他分子吸附在薄绝缘子上的电子和荧光性能。
A scanning tunneling microscope is used to study the fluorescence of a model charged molecule (quinacridone) adsorbed on a sodium chloride (NaCl)-covered metallic sample. Fluorescence from the neutral and positively charged species is reported and imaged using hyper-resolved fluorescence microscopy. A many-body excitation model is established based on a detailed analysis of voltage, current and spatial dependencies of the fluorescence and electron transport features. This model reveals that quinacridone adopts a large palette of charge states, transient or not, depending on the voltage used and the nature of the underlying substrate. This model has a universal character and explains the electronic and fluorescence properties of many other molecules adsorbed on thin insulators.
