Simon Bridge said:Those are good questions - to help me help you with them, please tell me how you are thinking about them.
Have a go answering the questions to the best of your ability, remembering that you can look them up online.
vead said:there are two type of charge carrier in semiconductor , one is electron which carry negative charge and other is hole which carry negative charge , electron meet with hole and they recombine ,
Q1 what is carrier transport
Q2 what is carrier statistics in semiconductor
ZapperZ said:A hole carries positive charge, not negative.
The motion of the two charge carriers.
Fermi-Dirac.
Zz.
Fermi and Dirac are two people from history.vead said:Fermi-Dirac and Fermi-level are different or same thing
The two types of carriers in semiconductors are electrons and holes. Electrons are negatively charged particles that carry a negative charge, while holes are positively charged particles that carry a positive charge.
Carriers can be created in semiconductors through processes such as thermal excitation, photoexcitation, and doping. Thermal excitation occurs when energy is added to the semiconductor, causing electrons to move to higher energy levels. Photoexcitation involves the absorption of light, which can create electron-hole pairs. Doping is the intentional introduction of impurities into the semiconductor to alter its electrical properties.
The carrier concentration in semiconductors determines the electrical conductivity of the material. A higher concentration of carriers leads to a higher conductivity, while a lower concentration results in a lower conductivity. This is important in the design and functioning of electronic devices, as the conductivity of the semiconductor material affects the flow of current and the device's overall performance.
Carrier mobility is a measure of how easily carriers can move through a semiconductor material. It is affected by factors such as the type of carrier, the presence of impurities, and the temperature. The statistics of carriers in semiconductors, such as their concentration and distribution, can also impact carrier mobility. For example, a high concentration of carriers can lead to more collisions between carriers, reducing their mobility.
Statistics plays a crucial role in understanding the behavior of carriers in semiconductors. By using statistical models and analysis, scientists can predict and explain the behavior of carriers in different semiconductor materials, under various conditions. This allows for the development of more efficient and advanced electronic devices that rely on the precise control and manipulation of carriers in semiconductors.