carrier density उदाहरण वाक्य

The differences in lineshape for the two theoretical approaches are obvious especially for the high carrier density case which applies to a laser system.
The decay of excitons yields a single-exponential decay function since the probability of their radiative recombination does not depend on the carrier density.
Thus, the larger the carrier density, heat capacity and speed, and the less significant the scattering, the higher is the conductivity.
However, the SLEs often are the only ( at low carrier densities ) or more convenient ( lasing regime ) to compute luminescence accurately.
The face of the SiC used for graphene formation, silicon-or carbon-terminated, highly influences the thickness, mobility and carrier density.

Instead, a measure of the profile of the doping gradients provides an " effective " profile that better matches the profile of the majority carrier density.
If carrier injection has not ceased during this period, then the carrier density in the active region can increase once more and the process will repeat itself.
The output power performance of an ideal SLED can be described with a simple model, not taking spectral effects into account and considering both a uniform distribution of carrier densities and zero reflections from the facets.
It should not be confused with the charge carrier density, the number of charge carriers ( e . g . electrons, ions ) in a material per unit volume, not including the actual charge on the carriers
Note that the photogenerated majority carriers will also diffuse towards the surface but their number as a fraction of the thermally generated majority carrier density in a moderately doped semiconductor will be too small to create a measurable photovoltage.