Subject and UNIT: Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
The energy band diagram of n-type semiconductor is shown in figure 3.8. In n-type semiconductor, the donor level is just below conduction band.
Definition, Advantages, Types
Subject and UNIT: Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
In a semiconducting material, if the charge carriers originate from impurity atoms which are doped to the original material, then this type of semiconductor is known as extrinsic or impure semiconductor.
Derivation, Equation, Limitations
Subject and UNIT: Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
In an intrinsic semiconductor, the number of electrons in conduction band is equal to the number of holes in valence band.
Definition, Energy band diagram, derivation, equation
Subject and UNIT: Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
In general, the number of charge carriers per unit volume of the material is called carrier concentration. It is also known as density of charge carriers.
intrinsic semiconductor
Subject and UNIT: Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
At very low temperature say 0K, no free electrons are available for conduction. Hence, this semiconductor behaves as an insulator at very low temperature.
Subject and UNIT: Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
A semiconductor in extremely pure form is known as intrinsic semiconductor. Its electrical conductivity is changed only by thermal excitation.
Types of Semiconductors
Subject and UNIT: Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
Semiconductors are also classified into (a) Direct band gap semiconductor (b) Indirect band gap semiconductor
Introduction, Definition, Classification, Characteristics, Uses
Subject and UNIT: Physics for Electrical Engineering: Unit III: Semiconductors and Transport Physics
Semiconducting material has electrical conductivity between a good conductor and a good insulator. It is simply called semiconductor. It is a special class of material which is very small in size and sensitive to heat, light and electricity.
Magnetic Properties of Materials | Physics for Electrical Engineering
Subject and UNIT: Physics for Electrical Engineering: Unit II: b. Magnetic Properties of Materials
Physics for Electrical Engineering: Unit II: b. Magnetic Properties of Materials : Part B '16' Marks Questions
Magnetic Properties of Materials | Physics for Electrical Engineering
Subject and UNIT: Physics for Electrical Engineering: Unit II: b. Magnetic Properties of Materials
Physics for Electrical Engineering: Unit II: b. Magnetic Properties of Materials : Anna university solved problems
Magnetic Properties of Materials | Physics for Electrical Engineering
Subject and UNIT: Physics for Electrical Engineering: Unit II: b. Magnetic Properties of Materials
Physics for Electrical Engineering: Unit II: b. Magnetic Properties of Materials : Part A '2' Marks Q and A Anna university Q and A
Magnetic Properties of Materials | Physics for Electrical Engineering
Subject and UNIT: Physics for Electrical Engineering: Unit II: b. Magnetic Properties of Materials
Physics for Electrical Engineering: Unit II: b. Magnetic Properties of Materials : Anna university solved problems