The metal halide perovskite solar cells have high power to mass ratio compared to their counter parts, It is very important to study the hazardous, high-energy neutrons which can damage and degrade materials over time, causing point defects and dislocation. Most commonly used MAPbI3 P-i-n perovskite solar cells are fabricated in N2 filled glovebox and further encapsulated to mitigate the exposure to atmosphere and moisture. From TPV and TPC measurements and Nano-mapping, charge transport time of radiated cell is declined compared to non-radiated device, due to decomposition of perovskite to PbI2, evident from the white nonconductive regions detectable in SEM and XRD Patterns of these samples. The fast neutrons enter the perovskite materials creating localized zones and high temperature which in turn decomposes MAPbI3 to MAI+PbI2, this is the reason for accounting a slight decomposition. Whereas when compared to lifetime of the space vehicle, the degradation pattern is negligible, which makes perovskite solar cell a potential candidate for space applications.

Impact of neutron radiation on perovskite solar cells

ACS Fall 2021

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.