Direct light-induced polymerization of cobalt-based redox shuttles: an ultrafast way towards stable dye-sensitized solar cells

Bella, FedericoVlachopoulos, NikolaosNonomura, KazuteruZakeeruddin, Shaik MohammedGraetzel, MichaelGerbaldi, ClaudioHagfeldt, Anders2015-12-022015-12-022015-12-02201510.1039/c5cc05533dhttps://infoscience.epfl.ch/handle/20.500.14299/121333WOS:000364040000002The photopolymerization of Co(II)/Co(III) complexes for dye-sensitized solar cells (DSSCs) by means of a fast, inexpensive, in situ and inhibition-free process has been examined. We have succeeded in fabricating high-performance DSSCs able to retain a light-to-electricity power conversion efficiency exceeding 6.5% (8.5% at low intensity) after 1800 h of mixed (light on/off, temperature high/low) accelerated aging tests, thus revealing a possible way for the stabilization of these record-holding redox pairs.Direct light-induced polymerization of cobalt-based redox shuttles: an ultrafast way towards stable dye-sensitized solar cellstext::journal::journal article::research article