Assertion: led | /r/CapableOf | produce visible radiation
Facets:
value: by electroluminescence phenomenon
type: CAUSE
Source sentences:
text: The efficiency of an LED producing visible radiation ranges from 0.01 percent to a few percent.
text: LEDs generate visible radiation by electroluminescence phenomenon when a low-voltage direct current is applied to a suitably doped crystal containing a p-n junction, as shown in the diagram below.
text: The efficiency of an LED producing visible radiation ranges from 0.01 percent to a few percent.
text: The efficiency of an LED producing visible radiation ranges from 0.01 percent to a few percent.
text: The efficiency of an LED producing visible radiation ranges from 0.01 percent to a few percent.