Semiconductor doping is the process of intentionally introducing impurities into an intrinsic semiconductor to modify its electrical properties, enhancing its conductivity. This controlled alteration allows for the creation of p-type and n-type semiconductors, which are essential in forming p-n junctions used in electronic devices such as diodes and transistors.

Semiconductor Doping

Semiconductor doping

An intrinsic semiconductor is a pure semiconductor material without any significant dopant atoms, where electrical conductivity is primarily determined by the properties of the material itself. At absolute zero, it behaves as an insulator, but as temperature increases, thermal energy excites electrons across the band gap, leading to electrical conduction.

intrinsic semiconductor

Impurities in semiconductors

Electrical properties of semiconductors

Conductivity of semiconductors

P-type semiconductors

n-type semiconductors

A P-N junction is the fundamental building block of many semiconductor devices, acting as a boundary between p-type and n-type materials. It is essential for controlling the flow of electricity in diodes, transistors, and many other crucial electronic components by allowing current to pass in one direction while blocking it in the opposite direction.

p-n junctions

Electronic devices are tools that operate on electrical energy to perform a variety of functions, including processing, storing, and transmitting information. They form the backbone of modern technology, enabling advancements in communication, entertainment, healthcare, and numerous other fields.

electronic devices

Diodes are semiconductor devices that allow current to flow in one direction only, functioning as a one-way valve for electric current. They are essential components in converting alternating current (AC) to direct current (DC) and are used in various applications such as rectifiers, voltage regulators, and signal demodulators.

diodes

Transistors are semiconductor devices used to amplify or switch electronic signals and electrical power, forming the fundamental building blocks of modern electronic devices. They revolutionized technology by enabling the miniaturization and increased power of circuits, leading to the development of computers, smartphones, and other digital devices.

Relevant Degrees

Your Lessons