The PN junction diode is one of the most important and widely used semiconductor devices in electronics. It is created by joining a P-type semiconductor and an N-type semiconductor within a single crystal structure. This simple yet powerful device allows electric current to flow easily in one direction while offering very high resistance to current […]
Tag: barrier potential
Unbiased PN Junction: Depletion Region and Barrier Potential
A PN junction is one of the most important structures in semiconductor electronics. It forms the basic building block of many electronic devices such as diodes, transistors, LEDs, solar cells, rectifiers, and integrated circuits. When a P-type semiconductor and an N-type semiconductor are joined together without applying any external voltage, the junction is called an […]
Types of Diodes: Symbol, Working, Characteristics and Applications
Diode is a versatile electronic component, many specialized types of diodes exist, each optimized for specific applications such as voltage regulation, light emission, high-speed switching, and detection. It is one of the most fundamental semiconductor devices used in electronics. It plays a critical role in controlling the direction of current flow in a circuit. From […]


