InGaAs PIN photodiodes grown on GaAs substrates by metal organic vapour phase epitaxy

We have fabricated and characterised high-efficiency, long-wavelength PIN photodiodes on In0.53Ga0.47As/InP/GaAs wafers grown by metal organic vapour phase epitaxy. Initial measurements indicate that good quality devices can be made in this highly stressed material system (lattice mismatch ~3.8%). These results suggest the possibility of fabricating optoelectronic integrated circuits (OEICs) by combining InGaAs(P) electro-optic devices with high-speed GaAs electronics.