A degenerate semiconductor is a type of semiconductor material that has a high concentration of free charge carriers, such as electrons or holes. This high concentration is typically achieved through doping, where impurities are intentionally added to the material.
A non-degenerate semiconductor has a lower concentration of free charge carriers and behaves more like an insulator. In a degenerate semiconductor, the high concentration of charge carriers allows for better electrical conductivity and other unique properties.
The source of degenerate semiconductors is typically through the process of doping. This involves adding impurities, such as phosphorus or boron, to the semiconductor material to increase the concentration of free charge carriers.
Degenerate semiconductors have many practical applications in electronic devices. They are commonly used in transistors, diodes, and other components of electronic circuits. They are also used in solar cells, lasers, and other optoelectronic devices.
One potential disadvantage of degenerate semiconductors is that they can be more difficult and expensive to produce compared to non-degenerate semiconductors. Additionally, their high concentration of charge carriers can make them more prone to defects and instability.