Semiconductors are the foundation of modern electronics and are widely used in devices such as diodes, transistors, integrated circuits, solar cells, sensors, and microprocessors. Based on the purity and conductivity characteristics, semiconductors are mainly classified into two types Intrinsic Semiconductor and Extrinsic Semiconductor. Understanding the difference between intrinsic and extrinsic semiconductors is extremely important in […]
Tag: energy band diagram
Extrinsic Semiconductors Explained
An extrinsic semiconductor is a semiconductor material whose electrical conductivity is intentionally increased by adding a small amount of impurity atoms into a pure semiconductor crystal. This process is known as doping. Extrinsic semiconductors form the foundation of modern electronics and are widely used in diodes, transistors, integrated circuits, LEDs, solar cells, and microprocessors. Pure […]
Intrinsic Semiconductors Explained
In this article, we will explore intrinsic semiconductors, including their definition, crystal structure, energy band diagram, characteristics, advantages, disadvantages, and applications. An intrinsic semiconductor is a pure semiconductor material without any significant impurity atoms added to it. In intrinsic semiconductors, the number of free electrons and holes are naturally generated due to thermal energy and […]
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 […]
Energy Band Theory of Solids: Conductors, Semiconductors, and Insulators
Energy band theory of solids explains why some solids conduct electricity easily, why some do not, and why others behave in-between. Classical physics could not explain electrical conduction fully, but quantum mechanics and band theory together provide a complete picture. Solids are materials in which atoms are closely packed in a regular or irregular arrangement. […]




