A team of Indian scientists has successfully created a highly efficient device for producing green hydrogen by splitting water molecules using solar energy. The device utilizes a next-generation photoelectrochemical design based on a silicon-based photoanode with a unique heterojunction structure incorporating titanium dioxide (TiO₂), silicon, and nickel oxide (NiO) layers. This architecture enhances charge separation, leading to improved energy conversion efficiency. The fabrication technique employed magnetron sputtering, a scalable method commonly used in the electronics industry, resulting in enhanced light absorption and reduced energy loss. The device achieved impressive surface photovoltage and demonstrated operational stability, functioning effectively for over 10 hours with minimal performance degradation. Experts believe that further development could position this innovation as a key component in clean energy infrastructure, supporting hydrogen-based applications in homes, transportation, and industries, all powered by solar energy.