A Study On Variation Of The N-tape Monocrystalline Silicon Solar Cells And Dye-sensitized Solar Cell Under Irradiation

Monocrystalline silicon solar cell has been the most widely used solar cell in the space environment. DSSC is a new-type solar cell which is expected to become a potential space solar cell. There is a strong radiation field in space environment which decrease the output of the battery. For the N-type monocrystalline silicon solar cell and DSSC using in the radiation environment, the main contents are as follows:1)The degradation and damage mechanisms caused by irradiation of space charged particles are investigated for the N-type monocrystalline silicon solar cell, based on equivalent ground simulation experiments. Different dose and dose rate was discussed as cells under electron irradiation. The electron interaction with monocrystalline semiconductor materials was simulated by using the Monte Carlo program MCNP. By measuring the battery J-V volt-ampere characteristics and calculating the change of minority carrier lifetime and internal series resistance of N-type monocrystalline silicon solar cells, this paper studies the influence of electron irradiation on cell under the different dose rate of 29 kGy/s and 116 kGy/s. The result shows that with the increase of electron irradiation dose, N-type monocrystalline silicon solar cell short-circuit current(Jsc) and maximum power density(Pmax) decreased significantly. When the irradiation dose is increased to 200 kGy, initial maximum power is nearly decreased under 60%. In the same electron irradiation dose, low dose rate for electron irradiation greater impact on the N-type monocrystalline silicon solar cell performance than high dose rate electron irradiation.2)This paper has studied the ? irradiation effects and damage mechanism of dye-sensitized solar cells(DSSCs). The DSSCs were irradiated by ? irradiation at room temperature. J-V characteristics of cells showed that DSSC parameters such as short circuit current density(Jsc) and maximum power density(Pmax) decreased significantly after irradiation. The Ultraviolet–visible spectra of FTO showed that the FTO transmittance decreased. The absorption peaks of dye generated a blue-shift. The X-ray diffraction measurement results indicated that the particle size of Nano-crystalline TiO2 was changed after ? irradiation.3)The effect of 10 MeV electron irradiation on DSSC have been studied in this paper. The short-circuit current(Jsc) and maximum power density(Pmax) of cell decreased significantly after the electron irradiation. When the irradiation dose is increased to 10 kGy, initial maximum power is nearly decreased under 50%. The Ultraviolet–visible spectra of FTO showed that the FTO transmittance decreased, meanwhile, the absorption peaks of dye decreased. The X-ray diffraction measurement results indicated that the particle size of Nano-crystalline TiO2 was changed after the electron irradiation. By the observation of SEM, the conglomeration of TiO2 Nano-particles appeared after the electron irradiation.The variation of the N-type monocrystalline silicon solar cell and DSSC parameters under irradiation have been studied in this paper. It provides a technology support to the precise prediction of the N-type monocrystalline silicon solar cell in the space radiation environment. At the same time, this paper give technical support on DSSC to the radiation-hardened design and apply in the space radiation environment.