Recently, the impurity photovoltaic effect (IPV) was proposed to improve the solar cell performance. Free electron–hole pairs can be generated in a two-step process involving an impurity level in the energy gap and two lower-energy photons: first electrons are optically excited from the...

Solar cells exposed to irradiation undergo severe degradation in their performance due to induced structural defects. To predict this effect, the current–voltage characteristics under AM0 illumination for a constant dose of electron irradiation are numerically calculated. From these...