Integrated manufacturing of REciclable multi-material COmposites for the TRANSport sector

We have investigated the combined effects of compact TiO2 (c?TiO2) electron?transport layer (ETL) without and with mesoscopic TiO2 (m?TiO2) on top, and without and with an iodine?terminated silane self?assembled monolayer (SAM), on the mechanical behavior, opto?electronic properties, photovoltaic (PV) performance, and operational?stability of solar cells based on metal?halide perovskites (MHPs). The interfacial toughness increases almost three?fold in going from c?TiO2 without SAM to m?TiO2 with SAM. This is attributed to the synergistic effect of the m?TiO2/MHP nanocomposite at the interface and the enhanced adhesion afforded by the iodine?terminated silane SAM. The combination of m?TiO2 and SAM also offers a significant beneficial effect on the photocarriers extraction at the ETL/MHP interface, resulting in perovskite solar cells (PSCs) with power?conversion efficiency (PCE) of over 24% and 20% for 0.1 cm2 and 1 cm2 active areas, respectively. These PSCs also have exceptionally long operational?stability lives: extrapolated T80 (duration at 80% initial PCE retained) is about 18,000 h and 10,000 h for 0.1 cm2 for 1 cm2 active areas, respectively. Postmortem characterization and analyses of the operational?stability?tested PSCs were performed to elucidate the possible mechanisms responsible for the long operational?stability.This article is protected by copyright. All rights reserved

» Publication Date: 13/10/2023

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