Secondary Electron Emission

Simulation of secondary electron emission based on a phenomenological probabilistic model

“…The energy and angular dependence of δ ts is well fit experimentally [15,17,18] by an approximately universal [25] scaling function D(x) such that…”

“…The conventional picture of secondary emission, which we base on various reviews of the subject [15,[17][18][19], can be summarized as follows: when a steady current I 0 of electrons impinges on a surface, a certain portion I e is reflected elastically while the rest penetrates into the material. Some of these electrons scatter from one or more atoms inside the material and are reflected back out.…”

“…However, although our formula for the true-secondary yield (Sec. 3.4.1) is different from the conventional one [15], it does incorporate the well-established range-energy relation [16].…”

“…In Sec. 3 we continue the definition of our model by providing detailed parametrizations for each of the three components of the SEY based on various reviews of the theory and phenomenology of the subject [15,[17][18][19]. In Sec.…”

Field Emission Organic Light Emitting Diode

“…A gate coated with the secondary electron emission (SEE) materials for obtaining electron amplification is called a dynode [15]. In general, any insulator with low work function is suitable for SEE application [16]. The mechanism of dynode can be simplified by the following processes: (i) the primary electrons penetrate into a certain depth of an insulating layer; (ii) through collision, the energy of the primary electrons is transferred to the bound electrons of the insulator, leading to a release of electrons; (iii) the released electrons migrate to the surface and escape into the vacuum as secondary electrons.…”