why germanium act as a semiconductor?

Answer 1

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Basic:
Germanium is a chemical element in the periodic table that has the symbol Ge and atomic number 32. This is a lustrous, hard, silver-white metalloid that is chemically similar to tin. Germanium forms a large number of organometallic compounds and is an important semiconductor material used in transistors.

Notable Characteristics:
Germanium is a hard, grayish-white element that has a metallic luster and the same crystal structure as diamond. In addition, it is important to note that germanium is a semiconductor, with electrical properties between those of a metal and an insulator.

In its pure state, this metalloid is crystalline, brittle and retains its lustre in air at room temperature. Zone refining techniques have led to the production of crystalline germanium for semiconductors that have an impurity of only one part in 1010.

Answer 2

Germanium is a hard, grayish-white element that has a metallic luster and the same crystal structure as diamond.

In addition, it is important to note that germanium is a semiconductor,

with electrical properties between those of a metal and an insulator.

In its pure state, this metalloid is crystalline, brittle and retains its lustre in air at room temperature. Zone refining techniques have led to the production of crystalline germanium for semiconductors that have an impurity of only one part in 1010.

Answer 3

Germanium is the fourth group element.Its valency is four.At low temperature the covalent bonds in germanium ae strong and hence no electron is free for conduction but at room temperature these bonds break making the electrons available for conduction.
The condictivity of germanium lies between insulators and conductors and hence germanium is semiconductor..

Answer 4

Because it is a group 4 element.

All group 4 elements have the potential to semiconduct. Compound semiconductors such as GaAs usually combine elements from two groupd to "average" to group 4 (gor GaAs its groups 3 and 5).

Answer 5

in germanium the forbidden gap between conduction and valence band is approximately 1eV. this is the basic reason to distinguish between a conductor and semicondutor. in case of insulator its value is approx. 7eV.

Answer 6

question not clear

which type of semiconductor

Answer 7

because the difference b/w its valance band and conduction band is greater than that of conducters but less than that of insulators.