Forty-two days in the SPA, building a stability parameter analyzer to probe degradation mechanisms in perovskite photovoltaic devices

Abstract

Dunfield et al. discuss various options for satisfying the ISOS light stability series (ISOS-L-#) of tests, a homebuilt testing apparatus and software suite for such tests, and a case study.

Measuring metal halide perovskite single cell degradation consistent with module-based conditions

“…The stability of these samples was evaluated in our Stability Parameter Analyzer (SPA) system in a modified ISOS-L-2I test. 21 Samples were loaded into a flow cell with an inert (N 2 ) atmosphere, illuminated at 0.77 suns, and held at elevated temperature (55 °C or 70 °C). The PSCs were periodically characterized by a current–voltage ( J – V ) sweep.…”