What is FET ? [ Field Effect Transistor]
A FET [ Field Effect Transistor] is a voltage controlled device ,the output characteristics are controlled by input voltage (i.e. electric field) and not by input current. FETs are also known as unipolar transistors .There are two basic types of field…
Read More »What is p-n junction?
p-n junction : When a p type semiconductor is suitably joined with a n type semiconductor the conduct surface is called p-n junction.
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Read More »Explained Kinds of Crystals | Types of Crystals
There are seven crystal systems and six crystal families. They are : 1. Triclinic 2.Monoclinic 3.Orthorhombic 4.Rhombohedral 5.Tetragonal 6.Hexagonal 7.Cubic Explanations given below – Triclinic crystal system : In crystallography, the triclinic crystal system is one of the…
Read More »What is Amorphous Solid? Properties of the Amorphous Solid
Amorphous solids: An amorphous or non-crystalline solid is a solid that lacks the long-range order characteristic of a crystal. Most classes of solid materials can be found or prepared in an amorphous form. Amorphous materials are often prepared…
Read More »What is Crystalline Solid? Properties of the Crystalline Solid
Crystalline solids: A crystal or crystalline solid is a solid material whose constituents, such as atoms, molecules or ions, are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition,…
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Read More »P-type Semiconductors conductivity | Ge doped P-type
P-type conductivity : The current conduction in an p-type semiconductor is predominantly by holes and is called p type conductivity.When potential difference is applied across the p-type semiconductors the holes will be directed towards the negative terminal, constituting…
Read More »How can we create a p-type Semiconductor ? | Ge doped P-type
When a small amount of trivalent metallic impurity is added to a pure semiconductor it is called p-type semiconductor. The addition of trivalent impurity provides a large number of holes in the semi conductor crystal. Typical examples of trivalent…
Read More »What is the effect of temperature on semiconductor
Temperature effects the mobility , conductivity,intrinsic concentration and forbidden energy gap of a semiconductor. Effect of temperature on semiconductor is given below : Mobility (µ) : The mobility means the movement of charge carriers. The mobility of intrinsic semiconductor decreases…
Read More »What do you mean by Valence Electrons and Free Electrons ?
Valence electrons are the electrons in the outermost shell of an atom( in valance band ). These electrons are weakly bound to the nucleus. These electrons are bounded to atom so that it can only be moved within valance…
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