接触带电中界面原子间电子跃迁诱导的光子发射
Interface inter-atomic electron-transition induced photon emission in contact-electrification
摘要:
接触起电(CE)(或摩擦起电)是通过两种材料之间的物理接触产生电荷的现象。在这里,我们报告的原子特征的光子发射光谱在CE两种固体材料之间。光子发射提供了在CE期间电子从一种材料中的原子到另一种材料中的另一个原子的界面处发生的证据。这个过程就是接触带电诱导界面光子发射光谱(CEIIPES)。它自然地为对应于界面处CE的光谱铺平了道路,这可能会影响我们对固体,液体和气体之间相互作用的理解。这里提出的物理可以扩展到俄歇电子激发,X射线发射,和电子发射在CE的一般情况下,这仍有待探讨。这可能会导致一个一般的领域,可以被称为接触带电感应界面光谱(CEIIS)。
英文摘要:
Contact electrification (CE) (or triboelectrification) is the phenomena where charges are produced through physical contact between two materials. Here we report the atomic featured photon emission spectra during CE between two solid materials. Photon emission provides the evidence that electron transfer takes place at the interface from an atom in one material to another atom in the other material during CE. This process is the contact electrification induced interface photon emission spectroscopy (CEIIPES). It naturally paves a way to a spectroscopy corresponding to the CE at an interface, which might impact our understanding of the interaction between solids, liquids, and gases. The physics presented here could be expanded to Auger electron excitation, x-ray emission, and electron emission in CE for general cases, which remain to be explored. This could lead to a general field that may be termed as contact electrification induced interface spectroscopy (CEIIS).
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