차세대 태양전지 연구실

Perovskite Solar Cells (PSCs) have attracted tremendous attention from researchers worldwide due to their remarkable properties, including a high absorption coefficient, excellent carrier mobility, long carrier diffusion length, tunable band gap, and low exciton binding energy. Since their first report with an efficiency of 3.8%, PVSCs have rapidly advanced to a certified 27% through solution processing. Recently, research has focused on further enhancing device performance and stability by improving perovskite film quality, engineering new compositions, and optimizing device architectures. Tandem Solar Cells (TSCs) represent one of the most promising strategies to surpass the efficiency limits of single-junction devices. By stacking a wide-bandgap perovskite absorber on top of a silicon or narrow-bandgap perovskite sub-cell, tandem architectures can more effectively harvest the solar spectrum. Certified power conversion efficiencies of perovskite/silicon tandems have already exceeded 33%, highlighting their potential for next-generation photovoltaics. Current research focuses on optimizing bandgap alignment, reducing interfacial recombination, and improving long-term operational stability to enable scalable manufacturing and commercial deployment.