Nature Energy, Published online: 24 July 2026; doi:10.1038/s41560-026-02116-4

The interconnected recombination layer is key to advance perovskite/silicon tandem solar cells. Cao et al. show that titanium oxynitride reconciles the requirements for recombination layers, improving the efficiency and stability for tandem solar cells and modules.

Nature Energy, Published online: 27 May 2026; doi:10.1038/s41560-026-02078-7

Converting plastic waste into jet fuel could support aviation decarbonization, but current approaches are limited by high-pressure requirements and low efficiency. Here the authors present a tandem hydropyrolysis and vapour-phase hydrogenation strategy that uses a Ru/Co-Al oxide catalyst, achieving promising rates and yields at low pressures.