On the Combined Application of Raman Spectroscopy and Photoluminescence Spectroscopy for the Diagnostics of Multilayer Heterostructures

The results of studying GaInAs/GaInP/GaAs photodiode structures grown by metal–organic vapor-phase epitaxy are reported. A procedure for the diagnostics of such multilayer structures is developed. The procedure is based on the application of Raman spectroscopy in combination with photoluminescence spectroscopy in the mode of the lateral scanning of transverse cleavages. The compositions of the GaInAs and GaInP solid solutions are determined.