Chinese researchers have achieved a significant milestone in solar hydrogen production efficiency, reaching a record of 10.36 percent efficiency sustained over a month. The team from the University of Science and Technology of China and Wuhan University designed a novel photoelectrode structure using silicon-based gallium nitride nanowires, as reported by Science and Technology Daily. This breakthrough, published in Nature Communications, addresses the challenges faced by traditional photoelectric hydrogen production devices by delivering high solar hydrogen production efficiency in a half-cell configuration and extending the photoelectrode's service life from hours to months. The new structure, loaded with gold nanoparticles as a co-catalyst, enhances catalytic activity for the hydrogen evolution reaction and prevents decay of catalytic activity, enabling stable hydrogen production for over 800 hours at high current densities. The researchers' approach not only ensures the durability of the photoelectrode but also supports mass production, making it suitable for large-scale green hydrogen production. This advancement in photoelectrochemical water splitting technology is expected to play a crucial role in energy conversion, supporting global energy transition and sustainable development initiatives.