a junction of p-type and n-type semiconductors, which is a basic component of semiconductor devices
The positive-negative junction of a semi-conductor diode. The p-region contains positive electrical charges while the n-region contains negative electrical charges. When voltage is applied and current begins to flow, the electrons move across the n region into the p region. The process of an electron moving through the p-n junction releases energy. The dispersion of this energy produces photons with visible wavelengths.
Area on an LED chip where the positively and negatively charged regions meet. When voltage is applied and current begins to flow, the electrons move across the n region into the p region. The process of an electron moving through the p-n junction releases energy. The dispersion of this energy produces photons with visible wavelengths. In short, the area on a chip where light is produced.
The junction formed at the interface between two differently doped layers of semiconductor material, one layer being doped with a positive-type dopant, the other with a negative-type dopant. An electric field is established at the p-n junction which gives direction to the flow of light-stimulated electrons.
The interface between two regions in a semiconductor crystal which have been treated so that one is a p-type semiconductor and the other is an n-type semiconductor.
A P-N junction (or N-P junction) is formed by creating two substrate materials of P type and N type on a semiconductor. P type means it is doped with "free holes" (electron depletion) and the N type is doped with electrons. Of course by physics, the free holes and free electrons would like to neutralize each other. A diode is formed with a P-N junction. Basically, when you have a NPN transistor, you have two junctions ... an NP junction between the collector and base, and a PN junction between the base and emitter. Vice-versa with a PNP transistor. How you bias those junctions controls how the transistor works.
The boundary between the n-layer and the p-layer in a semiconductor device such as a solar cell or transistor. The p-n junction forms an electrical barrier that keeps excess electrons in the n-layer separated from the p-layer, which allows the device to work properly in an electrical circuit. See N-layer, P-layer, Semiconductor.
A p-n junction is formed by combining N-type and P-type semiconductors together in very close contact. The term junction refers to the region where the two types of semiconductor meet.