Abstarct: Owing to global warming problems, renewable energy resources such as hydropower, geothermal, and solar energy have attracted considerable attention in recent decades. Regarding exploiting solar energy, one of the most promising ways is to use the solar cell technology that can convert the photon energy of the sun directly into electrical power. Among the emerging solar cells, Perovskite solar cells have received many attentions in recent years both in science and technology. Different physical processes, including photon absorption, charge transport and charge recombination (nonradiative, radiative, and Auger) occur in working conditions of a solar cell. One of the processes recently studied by researchers in the field is the phenomenon of photon recycling, which is the process of reabsorption of the photon resulted from the radiative recombination of electron-hole, in the Perovskite absorbers. In the present dissertation, we have investigated the effect of photon recycling on the open-circuit voltage (Voc) of the Perovskite solar cells. To this end, first, by solving a set of three coupled nonlinear continuity equations for electrons, holes, and photons, we obtained the charge carriers density (electrons and holes) in an absorber laxyer. The densities were used to calculate the Voc of the cell. We then examined the dependence of the voltage to the various parameters of the cell as the absorber thickness, the illumination influx intensity, and the nonradiative lifetime. To assess the photon recycling effect, the results were also compared with the corresponding cell without the photon recycling feature. According to our results, as the thickness increases, due to the competition between the recombination loss and the photon recycling gain, there is a maximum in the dependency of the voltage on the thickness. It was also found that the photon recycling has its most impact on the voltage at illumination fluxes higher than 1Sun where the radiative recombination loss becomes the dominant loss pathway in the absorber laxyer. Furthermore, since for the large nonradiative lifetime, the recombination regime is radiative, the photon recycling influence increases, leading to a saturated value for the open-circuit voltage of the cell which is known as the Shockley-Queisser limit. By examining the interplay between the various effects, it was finally concluded that the photon recycling can increase the open-circuit voltage several tens of mV, which in turn enhances the efficiency of the Perovskite solar cells by about 1٪.