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Title: Monitoring Stability of Metal-Halide Perovskites Under Combined Stressors of Ion-Beam and Heat
Rapid progress has been achieved in perovskite solar cells, improving the efficiency from 3.8 % to 25.7 % in less than a decade. However, the stability of perovskites still need to be improved before commercialization. This study reports the thermal stability of perovskites exposed to an ion beam irradiation. Such combined stressors are seen in atomic/nanoscale microscopy, where a perovskite lamella is characterized using a controlled heating/cooling stage. Focused ion beams (FIBs) are frequently used to section perovskites of interest. Previous studies proposed that high-energy electron beams could cause unexpectedly fast thermal degradation. Alternatively, the perovskite surface may be already altered during FIB processes, accelerating the deterioration. Here, we use a grazing angle argon ion (Ar+) beam directly irradiated on methyl-ammonium lead iodide (MAPbI3) to test the impact of ion beams to degradation mechanisms.  more » « less
Award ID(s):
2048152
PAR ID:
10505221
Author(s) / Creator(s):
; ;
Publisher / Repository:
Materials Research Society
Date Published:
Journal Name:
Electronic Materials Conference
Format(s):
Medium: X
Location:
University of California, Santa Barbara
Sponsoring Org:
National Science Foundation
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