Scientists at the Centre for Nano and Soft Matter Sciences (CeNS) in Bengaluru have made a significant breakthrough in green hydrogen production by developing a next-generation device that utilizes solar energy to split water molecules. Led by Dr. Ashutosh K. Singh, the research team designed a state-of-the-art silicon-based photoanode using an innovative n-i-p heterojunction architecture, enhancing charge separation and transport efficiency. The device achieved high efficiency with an excellent surface photovoltage and low onset potential, operating continuously for over 10 hours with minimal performance degradation. This breakthrough paves the way for decarbonizing industries, powering vehicles, and storing renewable energy with clean green hydrogen. The device's scalability, durability, and cost-effective materials make it a promising solution for large-scale solar-to-hydrogen energy systems. Published in the Journal of Materials Chemistry A, this research signifies a crucial step towards a more sustainable and renewable energy future.