Photovoltaics: Toward a Low‐Cost Artificial Leaf: Driving Carbon‐Based and Bifunctional Catalyst Electrodes with Solution‐Processed Perovskite Photovoltaics (Adv. Energy Mater. 20/2016)

Thomas Wågberg, Ludvig Edman, and co-workers present in article number 1600738 an artificial-leaf device comprising lightweight electrocatalyst electrodes powered by solution-processed perovskite photovoltaics. The electrocatalyst, comprising NiCo2O4 nanorods anchored onto carbon paper via nitrogen-doped carbon nanotubes, operates efficiently as both anode and cathode in alkaline solution. The wired artificial leaf can be very low cost and features a solar-to-hydrogen efficiency of 6.2%.