https://techxplore.com/news/2023-12-n-i ... solar.html
by Ingrid Fadelli , Tech Xplore
Engineers and material scientists have been working to develop increasingly advanced photovoltaic solutions, to convert as much solar energy as possible into electricity and help to reduce greenhouse gas emissions. This has led to the introduction of various new solar cell designs, including all-perovskite tandem solar cells.
Researchers at Chonnam National University in South Korea recently introduced new monolithic perovskite hybrid tandem solar cells based on all-inorganic halide perovskites. These solar cells, introduced in a paper in Energy & Environmental Science, have achieved promising efficiencies of 23%.
"Single junction solar cell designs have some limitations, such as thermalization loss and transmission loss," Dr. Sawanta S. Mali, first author of the paper, told Tech Xplore. "To resolve these losses, we need to fabricate tandem solar cells, in which two absorbers like wide bandgap (WBG) and narrow bandgap (NBG) materials are stacked together with the help of suitable interconnecting layer (ICL)."