Doping (semiconductor)
The doped material is referred to as an extrinsic semiconductor. Small numbers of dopant atoms can change the ability of a semiconductor to conduct electricity. When on the order of one dopant atom is added per 100 million atoms, the doping is said to be low or light.
Semiconductor Materials - IEEE IRDS
Semiconductor Materials Semiconducting materials range in price and availability from abundant silicon to expensive rare earth elements (REEs). Solar cells, field-effect transistors, IoT sensors, and self-driving car circuits all require semiconductor materials to function.
Doping Approaches for Organic Semiconductors | Chemical Reviews
Electronic doping in organic materials has remained an elusive concept for several decades. It drew considerable attention in the early days in the quest for organic materials with high electrical conductivity, paving the way for the pioneering work on pristine organic semiconductors (OSCs) and their eventual use in a plethora of applications. Despite this early trend, however, recent strides
The Future of the Semiconductor Industry - IEEE IRDS
According to the Semiconductor Industry Association (SIA), the United States owns 46 percent of the market share for global sales of semiconductors. The following companies represent the top five semiconductor industry leaders, in order of market share: Intel Corporation ($241.88 billion) Samsung Corporation ($221.6 billion)
Surface Transfer Doping of Semiconductors | Science
In all classical devices, the dopants are impurity atoms introduced into the bulk of the semiconductor. But doping can also be achieved by an electron exchange between a semiconductor and dopants situated at its surface. The surface dopants—below, we will use acceptors for illustration—possess unoccupied molecular orbitals for electrons (UMOs).
- Why are doping techniques important for doped organic semiconductors?
- Other than the category of molecular dopants, the doping techniques of the dopants are also crucial for the properties of doped organic semiconductors since the solid-state features (e.g., nano-/microstructure and domain size) of thin film are highly dependent on the processing methods .
- Does a low doping concentration affect the performance of organic semiconductors?
- However, as also mentioned, the doping efficiency in organic semiconductors is quite low (usually below 5%), thus low doping concentration will have no evident impact on performance improvement. The appropriate doping ratio employed in organic semiconductors is actually one of the challenges in the field.
- When did doping occur in organic semiconductors?
- The doping of organic semiconductors can date back to 1970s when the conductivity of organic materials is largely increased by adding the admixture of halides and alkali metals , including both conjugated small molecules and polymers.
- What is a doped semiconductor?
- In semiconductor production, doping is the intentional introduction of impurities into an intrinsic (undoped) semiconductor for the purpose of modulating its electrical, optical and structural properties. The doped material is referred to as an extrinsic semiconductor.
- How to do n-doping of organic semiconductors?
- There are various ways for n-doping of organic semiconductors and the following three approaches will be discussed. Using alkali metals. Using molecular compounds with very high HOMO levels. Using air-stable precursor molecules that can donate an electron to the matrix material in the deposited film.
- What is doping in microelectronics?
- In fundamental microelectronics, doping is a fabrication technique that can intentionally introduce impurities into a host semiconductor so that its structural, optical and electrical properties can be controllably tuned.
