Definition Of Diffusion Distance

Diffusion length is the average length a carrier moves between generation and recombination.

Definition of diffusion distance. We provide a mathematical explanation as to why the normalization makes diffusion distances more meaningful. Semiconductor materials that are heavily doped have greater recombination rates and consequently have shorter diffusion lengths. Diffusion is a process where molecules of a material move from an area of high concentration where there are many molecules to an area of low concentration where there are fewer molecules until it has reached equilibrium molecules evenly spread. Diffusion happens in liquids and gases because their particles move randomly from place.

Diffusion is driven by a gradient in concentration. It can be calculated that l 2 is equal to one half the square of the average distance in one dimension between the neutron s birth point and its absorption. Diffusion distance intuitively diffusion distance between a pair of points can be thought of as following. The physical meaning of the diffusion length can be seen by calculation of the mean square distance that a neutron travels in the one direction from the plane source to its absorption point.

Similarly the medium in which diffusion occurs could also be in one of the three physical states. Diffusion is a physical process that refers to the net movement of molecules from a region of high concentration to one of lower concentration. As a diffusion distance we propose to use a metric closely related to cosine similarity which is defined as the distance between two normalized vectors. Diffusion is the net movement of anything for example atom ions molecules from a region of higher concentration to a region of lower concentration.

Diffusion is the movement of a substance from an area of high concentration to an area of low concentration. Distance if the diffusion distance is small diffusion happens faster because the particles do not have as far to travel concentration difference concentration gradient diffusion is faster if. The material that diffuses could be a solid liquid or gas.