红外发光二极管

本文档介绍了红外发光二极管的发光原来及内部构造，以及出光的波长等等

SensorsSensorsSensorsFEmitters940to950nm,andtheresponsetimeisapproximately(1)InfraredLEDs1s.(1)PrincipleGaAlAsinfraredchipsdesignedforhigheroutputareshowninFigure3.TheemittedwavelengthofthechipofIntheabsenceofanexternallyappliedvoltage,theP-NFigure3(a)is940to950nmandtheoutputisapproxi-junctionofadiodewillbeatthermalequilibriumandthemately1.3to1.5timesthatoftheGaAschipofFigure2.