Assertion: cold cathode | /r/CapableOf | emit electron
Facets:
value: by photoelectric emission
type: MANNER
Source sentences:
text: Cold cathodes may also emit electrons by photoelectric emission.
text: A cold cathode is a cathode that is not electrically heated by a filament.[note 1] A cathode may be considered "cold" if it emits more electrons than can be supplied by thermionic emission alone.