Semiconductors and Junctions

The intermediate case, the semiconductors one, is the most interesting as long as they allow the manipulation of the materials from this category, either as insulating or as conductors, depending on the practical needs. 

Therefore, quantum the analysis of the semiconductors behavior and especially when they become conductors has a particular interest. 

This analysis starts from the previously established law of masses (3.135) with the purpose to define the Fermi level that separates the maximum occupied from the free states. 

Further, the attributing of the Fermi level depends on the way in which the semiconductors are treated aiming to transform it in a conductor. 

FIGURE 3.33 Solids classification based on the width between conduction band CB and the valence band VB, at quantum level (left), with Si and C-diamond exemplification (right) after (Further Readings on Quantum Solid 1936-1967 HyperPhysics, 2003 Putz, 2006). 

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Developing the implication of Fermi quantum statistics to model the semiconductors and junctions, including the transistor phenomenology, in modeling the quantum solids at the conducting level. 

J. J. Andre, J. Simon, E. Even, B. Boudjena, G. Guillaud, and M. Maitrot, Molecular semiconductors and junction formation phthalocyanine derivatives. Synth. Met. 18 683 (1987). 

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