Explain Conduction in Intrinsic Semiconductors: Explain Conduction in Intrinsic Semiconductors - As already explained, conduction through a semiconductor is due to two mechanisms viz. drift and diffusion. The movement of…
Charge Densities in Extrinsic Semiconductor: Charge Densities in Extrinsic Semiconductor - Equation (6.19) provides relationship between the electron and hole concentrations n and p respectively. If ND is the concentration…
Mass Action Law in Semiconductor: As already mentioned, concentration of free electrons and holes is always equal in an intrinsic semiconductor. When N-type impurity is added to an intrinsic semiconductor,…
What is Extrinsic Semiconductor? Intrinsic (or pure) semiconductor by itself is of little significance as it has little current conduction capability at ordinary room temperature. However, the electrical conductivity of…
What is Intrinsic Semiconductor? An intrinsic semiconductor is one which is made of the semiconductor material in its extremely pure form. A semiconductor is not truly intrinsic unless its impurity…
Fermi Dirac Function in Semiconductor: It is important to know what energies are possessed by a mobile carrier in a solid or semiconductor. This relationship is referred to as energy…
Drift Current and Diffusion Current in Semiconductor: The two basic processes which cause electrons and holes to move in a semiconductor are : drift, which is the movement caused by…
Energy Band Diagram of Semiconductors, Insulators and Metals: Energy Band Diagram of Semiconductors, Insulators and Metals - As discussed earlier, the electrons of an isolated atom are acted upon only…