مقدمه ای بر نیمه هادی ها Introduction to semiconductor

Introduction to semiconductor  

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ABSTRACT

A semiconductor material is one whose electrical properties lie in between those of  insulators and good conductors. Examples are: germanium and silicon.  In terms of energy bands, semiconductors can be defined as those materials which  have almost an empty conduction band and almost filled valence band with a very  narrow energy gap (of the order of 1 eV) separating the two.