Stability of Perovskite Solar Cells following the ISOS-O-2 Protocol: Outdoor testing in Barcelona, Spain (41.30 &#176;N, 2.09 &#176;W)

Stability of Perovskite Solar Cells following the ISOS-O-2 Protocol: Outdoor testing in Barcelona, Spain (41.30 °N, 2.09 °W)

Yegraf Reyna^a, Amador Pérez^a, Monica Lira-Cantu^a^,^c^,^d, Shahzada Ahmad^b, Samrana Kazim^b, Manuel Salado^b

^aCatalan Institute of Nanoscience and Nanotechnology (ICN2), Campus UAB, Bellaterra 08193, (Barcelona)

^bAbengoa Research, Abengoa, C/ Energía Solar no 1, ,Campus Palmas Altas, 41014, Sevilla

^cConsejo Superior de Investigaciones Científicas (CSIC), Campus UAB, Bellaterra E-08193, (Barcelona)

^d4Barcelona Institute of Science and Technology (BIST), Campus UAB, Bellaterra, 08193 Barcelona

nanoGe Perovskite Conferences
Proceedings of Perovskite Thin Film Photovoltaics (ABXPV)

Barcelona, Spain, 2016 March 3rd - 4th

Organizers: Emilio Palomares and Nam-Gyu Park

Poster, Monica Lira-Cantu, 073
Publication date: 14th December 2015

One of the main issues of organic-inorganic halideperovskite based Solar Cells (PSCs) is their long-term stability. The lead halide perovskite is known to undergo irreversible degradation due to hydrolysis under high humidity atmospheres,crystal and phase transitionswerealso observed underinfluence of temperatures above 60-80 °C. Although highly dependent on the PSC configuration (normal, inverted, mesoscopic or planar), factor such as pressure or UV light are also sources of device lifetime decay. Thus, the basic understanding of the degradation processes occurring in PSCs, the effect of different environment condition and the application of innovative methods to avoid materials instability, still requires further exploration. In this work, we applied the ISOS-O-2 protocol for the analyses of the stability of normal configuration in PSCs. More than 15 sealed samples with power conversion efficiencies between 8% and 15% having mesoscopic configuration, were analysed under outdoor conditions for more than 3 months (studies still under analyses). We present here our first results through the comparison of devices before/after degradation and show the effect of UV light, temperature and irradiation. We also develop device modelling based on mixed electronic/ionic conduction to understand the behaviour of the PSCs observed at low intensities and the early burn-out

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