Energy levels silicon dioxide

Field-effect transistors (Appendix C) are miniature cousins of the Kelvin probe. The most common is the insulated gate field-effect transistor. The heart of the insulated gate field-effect transistor is the Metal-Insulator-Semiconductor (MIS) capacitor. Let us form this capacitor from palladium (to be modulated by hydrogen), silicon dioxide (insulator), and p-type silicon (semiconductor), and examine the energy levels in this structure (Fig. 6.32). 

Semiconductors Materials with electrical conductivity intermediate between that of metals and insulators Semipermeable membrane A membrane that allows water molecules but not ions or larger molecules to pass through Sequestrant Chemical that ties up metal atoms or ions by forming bonds with them used as food additives Shell A principal energy level defined by a given value of n Silica Naturally occurring silicon dioxide Silicates Minerals composed of metal cations and silicon-oxygen anions... 

---