1206 Side Emitting LED Manufacturer, Wholesale, Order, Quotation [Nanjing Winsbo Electronics Co., Ltd.] The terminal voltage of the PN junction forms a certain barrier. When a forward bias voltage is applied, the barrier decreases, and the majority carriers in the P and N regions diffuse towards each other. Since the electron mobility is much greater than the hole mobility, a large number of electrons diffuse into the P region, injecting into the minority carriers. These electrons recombine with holes in the valence band, and the energy released during recombination is emitted as light energy. This is the principle of the PN junction emitting light.



































