Researchers in South Korea have demonstrated a lower temperature process for bifacial copper, indium, selenium (CuInSe₂) solar cells with a rear-side efficiency of 8.44% and 15.30% on the front. The device has been developed for applications in tandem solar cells…
https://www.pv-magazine.com/2025/08/08/scientists-build-bifacial-cis-solar-cell-with-record-efficiency-power-density/
