Particle or
quasiparticle capable of transporting an electric charge.
Note:
A charge carrier can be free (mobile) or trapped (immobile).
Example: Charge carriers are electrons,
electron holes, protons or other ions, charged solitons, polarons or bipolarons.
See also: Coulomb radius
Source:
PAC, 2022, 94, 15. 'Glossary of terms relating to electronic, photonic and magnetic properties of polymers (IUPAC Recommendations 2021)' on page 17 (https://doi.org/10.1515/pac-2020-0501)