Majority and minority carrier concentration under bias
{"Image DocumentName": "Majority and minority carrier concentration under bias", "Image ImageDescription": "When an external voltage is applied, the minority carrier concentration at the edge of the depletion layer will change. If a forward voltage (VA=positive) is applied, the barrier will be lower and carrier injection (diffusion part) will increase. The minority carrier concentration at the edge of the depletion layer will increase. If a reverse voltage (VA = negative) is applied, the barrier for carrier injection (diffusion part) will increase, and the minority carrier concentration at the edge of the depletion layer will decrease. The drift of minority carriers across the junction does not change much with applied voltage. Why? At VA = 0, the carrier injection and the drift of minority carriers cancel each other such that an equilibrium conc. is maintained. If low-level-injection condition is assumed, then the majority carrier concentration will not change under any of the above conditions.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}