These cells have shown remarkable progress in recent years with rapid increases in efficiency, from reports of about 3% in 2009 to over 26% today on small-area devices (about 0.1 cm2).
While reports revealed that perovskite-silicon tandem cells have reached efficiencies of almost 34%.
Stability in high-temperature
However, perovskite PV is not yet manufactured at scale as a number of challenges are required to be addressed before perovskites can become a competitive commercial PV technology.
“Through this latest research, we have developed a hole transport layer system that retains high efficiency while ensuring stability in high-temperature and high-humidity environments,” said Professor Dong Suk Kim, who led the study.
“This represents a significant step toward the practical application of perovskite solar cells.”