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Core - Electrical Engineering

    Chapter 10

    Basics of Semiconductors

    10.1 : Energy Bands in Solids01:01

    10.1 : Energy Bands in Solids

    Solids are composed of atoms with distinct electronic configurations and energy levels. When two identical isolated atoms are brought close together, ...

    741 views
    10.2 : Semiconductors01:22

    10.2 : Semiconductors

    Materials are broadly categorized into three types as metals, insulators, and semiconductors. Metals have no energy band gap due to the overlap of the ...

    647 views
    10.3 : Types of Semiconductors01:20

    10.3 : Types of Semiconductors

    A pure silicon wafer used in integrated circuits is an intrinsic semiconductor that lacks impurities and exhibits low electrical conductivity. At zero ...

    535 views
    10.4 : Carrier Generation and Recombination01:22

    10.4 : Carrier Generation and Recombination

    Carrier generation refers to the creation of electron-hole pairs. Band-to-band generation occurs in direct band gap semiconductors via thermal excitation ...

    525 views
    10.5 : Carrier Transport01:21

    10.5 : Carrier Transport

    Carrier transport in semiconductors generates current, through drift and diffusion mechanisms. Drift current arises when an external electric field causes ...

    406 views
    10.6 : P-N junction01:11

    10.6 : P-N junction

    Solar streetlights function independently without the requirement of an external power supply, as they contain p-n junctions within their solar cells. A ...

    469 views
    10.7 : Biasing of P-N Junction01:16

    10.7 : Biasing of P-N Junction

    The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium. In equilibrium, no ...

    426 views
    10.8 : Metal-Semiconductor Junctions01:24

    10.8 : Metal-Semiconductor Junctions

    Contact between a Metal and a semiconductor forms a junction with either Schottky or Ohmic behavior. If the metal's work function exceeds that of the ...

    300 views
    10.9 : Biasing of Metal-Semiconductor Junctions01:27

    10.9 : Biasing of Metal-Semiconductor Junctions

    Biasing metal and n-type semiconductor junctions involves applying a voltage to metal while grounding the semiconductor. The resulting current is positive ...

    215 views
    10.10 : Fermi Level01:18

    10.10 : Fermi Level

    The Fermi-Dirac function, represented by a sigmoid curve, indicates the probability of an energy state being occupied by an electron at a given ...

    504 views
    10.11 : Fermi Level Dynamics01:12

    10.11 : Fermi Level Dynamics

    The vacuum level represents the energy threshold for an electron to escape a material's surface. It typically lies above a semiconductor's ...

    225 views
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