Interface-Engineered InAlN/Cu2O Photocathode with Accelerated Charge Separation for Boosting Photoelectrochemical Water Splitting
Cu2O has emerged as a promising material for sustainable hydrogen production through photoelectrochemical (PEC) water splitting, while inefficient charge separation remains one of the main challenges hindering its development. In this work, a new architecture of InAlN/Cu2O heterojunction photocathode is demonstrated by combining n-type InAlN and p-type Cu2O to improve the charge separation efficie