Proton irradiation induced damage effects in CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>-based perovskite solar cells

Perovskite solar cells (PSCs) have a great potential for space applications due to their high specific power, low cost and defect tolerance. PSCs used in will be subjected high-energy particle irradiation, especially proton resulting the decline of photovoltaic (PV) performance. However, research on irradiation effects is still its infancy stage. In this work, CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> (MAPbI<sub>3</sub>) thin films are irradiated by protons with energy 0.1, 2, 10, 20 MeV, etc. Irradiation-induced changes PV parameters studied as function fluence. The structural surface morphological MAPbI<sub>3</sub> Au electrode layers characterized X-ray diffraction scanning electron microscopy. addition, UV spectrophotometer also employed analyze transmission loss glass substrate induced irradiation. It found that exhibit superior resistance against properties don’t degrade after 0.1 MeV (2 MeV) up fluence 1×10<sup>13</sup> p/cm<sup>2</sup> (1×10<sup>14</sup> p/cm<sup>2</sup>). irradiation-induced damage charge transport may main cause performance degradation PSCs. gaseous products (NH<sub>3</sub> CH<sub>3</sub>I) perovskite decomposition eventually lead exfoliation top from Regarding 10 larger projected ion ranges, irradiations create color center defects PSCs, which results decrease light visible spectrum. defects, specifically non-bridging oxygen hole centers, partly annealed at room temperature or 100 ℃, reducing glass. reported help predict environment.