Jf. Lin et al., (AL0.5GA0.5)0.65IN0.35P GA0.65IN0.35P DOUBLE-HETEROSTRUCTURE ORANGE LIGHT-EMITTING-DIODES/, Electronics Letters, 29(15), 1993, pp. 1346-1347
Visible light-emitting diodes (LEDs) emitting at 615 nm and employing
the AlGaInP/GaInP double heterostructure (DH) grown on a lattice-match
ed GaAs0.7P0.3 substrate have been fabricated for the first time. The
external quantum efficiency of 0.156% for the orange LEDs can be achie
ved by introducing the GaP material as the current spreader and window
layer for the DH LEDs.