A team of researchers from Imperial College London and Queen Mary University of London have developed a method for harnessing solar energy to produce hydrogen. The team addressed the instability of organic materials in water by creating a multi-layer device integrating a bulk heterojunction organic photoactive layer with a graphite sheet functionalized with a catalyst. This innovation achieved a solar-to-hydrogen efficiency of 5%, a record in organic photoactive device performance. The researchers emphasized the immense potential of organic materials in direct solar hydrogen generation, highlighting their tunability and versatility for converting sunlight into fuels and chemicals. The study demonstrated stable and efficient solar water splitting using low-cost organic materials, paving the way for sustainable energy production. The team plans to further enhance material stability and scale up the technology for industrial applications.