Types of non-radiative recombination centers in LED semiconductor materials
There are non-radiative recombination centers in semiconductor materials, also known as extinction centers, which make the non-radiative recombination process in many semiconductor materials a dominant process. Material background impurities, lattice defects, complexes of defects and impurities, etc. may all become non-radiative recombination centers. They are very harmful to luminescence. Many types of non-radiative recombination processes […]