töltéstömeg
Töltéstömeg, also known as charge carrier density, refers to the concentration of charge carriers—typically electrons or holes—in a material, particularly in semiconductors and conductors. It is a fundamental concept in electronics and solid-state physics, describing how many charge carriers are available per unit volume to conduct electricity. The unit of töltéstömeg is usually expressed in cubic centimeters (cm³) or cubic meters (m³), though it can also be given in terms of charge per unit volume (e.g., coulombs per cubic meter, C/m³).
In semiconductors, töltéstömeg is influenced by factors such as doping, temperature, and intrinsic carrier concentration. For
Töltéstömeg plays a critical role in device performance, such as in transistors, diodes, and solar cells. In
The concept is mathematically related to conductivity (σ) through the formula σ = q * (n * μ_n + p * μ_p), where