[1PS-128]
우수논문발표상 응모자Interface Engineering of Organic Photoanodes for Solar-Driven Value-Added Chemical Production
발표자전은송 (울산과학기술원)
연구책임자조한희 (울산과학기술원)
Abstract
Organic semiconductors (OS) hold great potential for improving both the efficiency and the design flexibility of photoelectrochemical (PEC) devices due to their tunable energy levels, strong light absorption, and solution processability. Despite these advantages, their practical application in PEC systems remains limited, primarily because short exciton diffusion lengths and inefficient charge extraction often result in unfavorable charge recombination. To overcome these limitations, we engineered the semiconductor/charge transporting layer interface using nanostructured SnO2. This nanostructure facilitates efficient charge separation and suppresses charge accumulation at the interface. As a result, the optimized SnO2/OS photoanodes demonstrated hour-scale operational stability for various oxidation reactions such as sulfite and iodide oxidation. These findings highlight a pathway toward the practical solar-driven value-added chemical production through interfacial engineering.