Bifacial CuInSe2 photo voltaic cells obtain file effectivity on clear substrates
by Riko Seibo
Tokyo, Japan (SPX) Jul 22, 2025
The Division of Power and Environmental Expertise on the Daegu Gyeongbuk Institute of Science and Expertise (DGIST) has developed a next-generation thin-film photo voltaic cell able to producing electrical energy from each side. Spearheaded by Principal Researchers Daehwan Kim and Shijoon Sung, the workforce fabricated slim band hole CuInSe2 photo voltaic cells utilizing copper, indium, and selenium on clear electrode substrates, introducing a bifacial structure that enhances power yield.
Bifacial photo voltaic cells are designed to reap daylight from each the back and front sides, boosting energy technology with out rising the set up footprint. Nonetheless, producing high-performance thin-film gadgets on clear electrodes has been difficult attributable to their restricted warmth tolerance. Conventional fabrication strategies require excessive temperatures, which degrade clear supplies and compromise cell effectivity.
To beat this, the DGIST workforce integrated silver (Ag) into the CuInSe2 compound, enabling the deposition course of at a lowered temperature under 420C. Additionally they optimized the machine construction by making a gallium (Ga) gradient on the base of the absorber layer, which improved cost transport and lowered recombination losses. These improvements considerably enhanced the efficiency of CuInSe2 bifacial photo voltaic cells on heat-sensitive clear substrates.
The ensuing gadgets achieved a notable 15.3% effectivity from the entrance and eight.44% from the rear, with a bifacial energy technology density of 23.1 mW/cm-ranking among the many highest globally for thin-film cells of this kind.
“This examine gives a brand new risk to extend effectivity for thin-film photo voltaic cells primarily based on clear substrates,” acknowledged Kim and Sung. “We are going to additional broaden the scope of functions for high-efficiency bifacial photo voltaic cell know-how primarily based on clear substrates.”
The examine was co-authored by PhD pupil Ali Amanat and researcher Donghwan Jeon. It appeared as the duvet article within the June 17 on-line version of Superior Power Supplies.
Analysis Report:Highly Efficienct Bifacial Narrow Bandgap Ag-CuInSe2 Solar Cells on ITO
Associated Hyperlinks
Daegu Gyeongbuk Institute of Science and Technology
All About Solar Energy at SolarDaily.com
Trending Merchandise
