injected hole

injected hole

[in′jek·təd ′hōl]
(mining engineering)
A borehole into which a cement slurry or grout has been forced by high-pressure pumps and allowed to harden.
References in periodicals archive ?
In this layered structure, the injected holes and electrons migrate across the polymer layer, combine to form excitons, which then decay with photon emission.
The bandgap is the energy difference between a band of energy levels occupied by the injected electrons (conduction band) and a lower band occupied by the injected holes (valence band).