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The present paper deals with the modeling of the simultaneous impact of temperature and applied hydrostatic pressure on the electronic characteristics and electrical parameters in In0.2Ga0.8N/GaN p-i-n solar cells. The energy conduction band is calculated with a self-consistent model coupled with the photovoltaic parameters taking into consideration the spontaneous and piezoelectric polarizations. A new efficient numerical model based on the difference finite method is well suited to theoretical and experimental data. The results reveal that the hydrostatic pressure has a beneficial effect on the behavior of cells on the N-face configuration, whereas the elevated temperature has a destructive impact on these devices.

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