What do you know about semiconductors? In this article, we intend to introduce semiconductors and their applications. In the following, we will examine the types of semiconductors and express the Differences Between P-Type and N-Type Semiconductor.
What is a semiconductor?
A semiconductor material has an electrical conductivity value falling between that of a conductor, such as metallic copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave the opposite. Its conducting properties may be altered in useful ways by introducing impurities ("doping") into the crystal structure. When two differently-doped regions exist in the same crystal, a semiconductor junction is created. The behavior of charge carriers, which include electrons, ions and electron holes, at these junctions is the basis of diodes, transistors and all modern electronics. Some examples of semiconductors are silicon, germanium, gallium arsenide, and elements near the so-called "metalloid staircase" on the periodic table. After silicon, gallium arsenide is the second most common semiconductor and is used in laser diodes, solar cells, microwave-frequency integrated circuits, and others. Silicon is a critical element for fabricating most electronic circuits.
Types of semiconductors
Here we consider two types of semiconductors, N, and P.
Extrinsic semiconductors are components of many common electrical devices. A semiconductor diode (devices that allow current in only one direction) consists of p-type and n-type semiconductors placed in junction with one another. Currently, most semiconductor diodes use doped silicon or germanium. Click for more information.
P-Type Semiconductor VS N-Type Semiconductor
A p-type semiconductor is created when group III elements are doped to a complete semiconductor material. As opposite, an n-type semiconductor is created when group V elements are doped to an intrinsic semiconductor.
As components like gallium, boron, indium, etc., are doped to form a p-type semiconductor; therefore, it creates an additional hole, thus also known as acceptor atom. On the contrary, components like bismuth, arsenic, antimony, etc., are doped to have an n-type semiconductor, creating an additional electron, thus also termed as donor atom. Read more
References:
https://www.linquip.com/blog/differences-between-p-type-and-n-type-semiconductor/
https://en.wikipedia.org/wiki/Extrinsic_semiconductor
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