[1PS-125]
우수논문발표상 응모자The Role of Interface Engineering in Efficient and Stable Back-Contact Perovskite Solar Cells
발표자진해담 (서울시립대학교)
연구책임자김민 (서울시립대학교)
Abstract
Back-contact perovskite solar cells (BC-PSCs) maximize photon absorption and charge collection. Efficient charge extraction, however, requires sophisticated interface engineering. We developed a novel electron transport layer (ETL) via a simple spin-coating process, combining nanoparticle SnO₂ with a sol–gel SnO₂ solution. This significantly enhances interfacial contact, reduces trap-assisted recombination, and improves energy-level alignment.
Through advanced microscopy, we demonstrated that the BC-PSC achieves a 4.52% power conversion efficiency, attributed to superior charge collection. The back-contact configuration also enables direct analysis of interfacial charge dynamics, providing crucial insights into carrier transport.
These results highlight interface-engineered BC-PSCs as a scalable, high-performance platform for next-generation photovoltaics