Assertion: organic light emitting diode | /r/HasProperty | excited
Facets:
value: in order to measure the photoluminescence spectrum
type: PURPOSE
value: optically
type: MANNER
value: at 450 nm
type: OTHER
Source sentences:
text: The organic light emitting diode was also optically excited at 450 nm in order to measure the photoluminescence spectrum which is shown by the dashed black line.