Doping in III-V Semiconductors - Cambridge Core
The author describes in detail all the various techniques, including doping during epitaxial growth, doping by implantation, and doping by diffusion. The key characteristics of all dopants that have been employed in III–V semiconductors are discussed.
Doping (semiconductor)
In semiconductor production, doping is the intentional introduction of impurities into an intrinsic semiconductor for the purpose of modulating its electrical, optical and structural properties. The doped material is referred to as an extrinsic semiconductor.
Doping of Soft Semiconductors | ACS Energy Letters
In organic semiconductors, electronic doping is considered a way to surgically control the electronic properties of organic devices such as light-emitting diodes, photodetectors, thermoelectrics, solar cells, field-effect transistors, and lasers. It is already implemented, with small molecules, in commercially available OLED displays.
Semiconductor p-n junction diode - Semiconductors and p-n
A p-n junction diode is formed by doping one half of the semiconductor crystal with p-type impurity and the other half with n-type impurity while the crystal is being formed. Unbiased p-n...
15.2: Semiconductors- Band Gaps, Colors, Conductivity and Doping
Thus semiconductors with band gaps in the infrared (e.g., Si, 1.1 eV and GaAs, 1.4 eV) appear black because they absorb all colors of visible light. Wide band gap semiconductors such as TiO 2 (3.0 eV) are white because they absorb only in the UV. Fe 2 O 3 has a band gap of 2.2 eV and thus absorbs light with λ < 560 nm.
- What is semiconductor doping?
- Semiconductor doping is a key process in electronics. It involves adding tiny amounts of specific impurities to a pure semiconductor material, like silicon, to change its electrical properties. This process helps the semiconductor conduct electricity better and makes electronic devices like transistors and diodes work properly.
- What is doping in electronics?
- In electronics, doping is the process of adding certain chemical elements to a semiconductor in order to change its electrical conductivity. These elements are tiny impurities. This is done to create diodes that make electricity go in one direction, or to make transistors and semiconductor switches.
- What happens if a semiconductor is doped?
- In most cases many types of impurities will be present in the resultant doped semiconductor. If an equal number of donors and acceptors are present in the semiconductor, the extra core electrons provided by the former will be used to satisfy the broken bonds due to the latter, so that doping produces no free carriers of either type.
- What is an example of doping?
- Doping of a group of pure silicon. In this example, a silicon-based intrinsic ("undoped") semiconductor becomes extrinsic ("doped") when elements such as Boron and Antimony are added to it. In electronics, doping is the process of adding certain chemical elements to a semiconductor in order to change its electrical conductivity.
- How does n-type doping increase conductivity?
- This is how n-type doping increases conductivity of the semiconductor. The excess of electrons (e -) in the n-type semiconductor generates an overall negative charge, hence the name "n-type". p-type doping: In this, elements with three valence electron are added as impurities ("trivalent" or "acceptor") in the semiconductor.
- How does doping affect the conductivity of semiconductors?
- Doping alters the conductivity of semiconductors by modulating their electrical properties, band structure, and carrier mobility, enabling the precise control of charge flow and the advancement of semiconductor technology.
