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dopant
This term is used almost exclusively within the fields of materials science, chemistry, and semiconductor physics. It describes a specific additive used to alter the intrinsic properties of a substrate, such as increasing the conductivity of silicon. The term carries a neutral, technical connotation and is distinct from the colloquial use of "doping" in sports, which refers to the illegal use of performance-enhancing drugs.
In a technical context, the dopant is the substance being added, while the process itself is called doping. The term is typically used in a precise, scientific register to describe the intentional introduction of impurities to achieve a desired electronic or optical effect.
Meanings
Examples
Phosphorus is commonly used as an n type dopant in silicon wafers.
Which dopant should we use to increase the conductivity of this sample?
The precise concentration of the dopant determines the electrical properties of the diode.
The precise concentration of the dopant determines the electrical properties of the diode.
I wonder if a different dopant would improve the efficiency of the solar cell.
Boron acts as a p type dopant by creating holes in the crystal lattice.
We need to ensure the dopant is distributed uniformly across the substrate.
The researcher carefully selected a rare earth element as the dopant for the laser crystal.
Adding a dopant changes the material from an intrinsic to an extrinsic semiconductor.