Semiconductor

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Semiconductor

Any substance that conducts electricity more slowly than a conductor. Semiconductors are common in products like computer chips and, as such, may be traded as commodities. Silicon and germanium are both semiconductors.
References in periodicals archive ?
JSR and Shin-Etsu entered the semiconducting materials markets earlier than three of the general chemical firms.
At Warwick, research has been carried out on the use of thin- and thick-film semiconducting materials for odor sensing.
4 percent annually to $5 billion in 2003, led by strong growth in higher-value, high performance products such as compound semiconducting materials, advanced photoresists, chemical mechanical planarization (CMP) slurries, specialty gases and novel dielectric polymers.
As other semiconducting materials such as SiGe, SiC, Ge and III-V compounds came under consideration for future devices, the scope was broadened so as to include these materials.
These devices are typically comprised of a transparent glass substrate (1 mm-thick glass slide) onto which metallic or transparent semiconducting materials are coated and patterned (etched) to form electrodes.
The major issue preventing their broad use in earth-based applications has been the need to use exotic semiconducting materials for the upper layers.
Today, computers use transistors made from highly engineered semiconducting materials to carry out their logical operations.
Nocera noted that all of these materials are abundant on Earth, unlike the rare and expensive platinum, noble metal oxides and semiconducting materials others have used.
By contrast, CQD technology is based on nanoparticles of semiconducting materials (in this case, lead sulphide) that can be spin-coated or sprayed on a substrate surface, including ones that are lumpy or flexible.
Transistors are built out of semiconducting materials, with properties that are finely tuned by adding small amounts of impurities called dopants.
Current flexible electronic devices are based on organic semiconducting materials with excellent current switching but poor charge carrier mobility, which result in a slow response.