We consider structure with single quantum well InP 5 nm thick grown by vapor phase epitaxy on n-GaP wafer. By classical capacitance-voltage profiling of Schottky diode on sample and electrochemical profiling, electron accumulation were detected in InP layer so existence of quantum well is confirmed. Results of admittance spectroscopy and deep-level transient spectroscopy showed defect formation in GaP layers above InP with energy position of Ec-0.21 eV, 0.30 eV и 0.93 eV.
The possibility of creating a lower junction of multijunction A3B5/Si solar cells based on an n-GaP/p-Si heterostructure was shown, using a combination of plasma enhanced atomic-layer deposition (PEALD) and metal-organic vapor phase epitaxy (MOVPE) at a temperature (Ts) not exceeding 650 °C. Photoelectric properties of structures grown at 650 °C, depends on the conditions of the PEALD process, in particular, the use of additional processing in Ar plasma.
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