dopant

[doh-puh nt] /ˈdoʊ pənt/
noun, Electronics.
1.
an impurity added intentionally in a very small, controlled amount to a pure semiconductor to change its electrical properties:
Arsenic is a dopant for silicon.
Origin
1960-65; dope + -ant
Examples from the web for dopant
  • These phenomena can be accounted for if chemical processes in the gas phase, which involve the dopant, are considered.
  • Some dopant gases that are used include arsine, phosphine, and diborane.
  • The absence of photochemical activity may result from dopant-induced trap and/or recombination sites within the film.
British Dictionary definitions for dopant

dopant

/ˈdəʊpənt/
noun
1.
an element or compound used to dope a semiconductor
Word Origin
C20: see dope, -ant