Developing a solar thin film tandem cell at 38% efficiency

first attempt to build tandem solar cells based on CIGS and SWCNT

CGIS cell with a 2,000 nm thick absorber achieved a maximum power conversion efficiency of 23.69%

tandem cell, the scientists used a version of the CIGS cell with a 22.82% efficiency and a sample of the SWCNT device with an efficiency of 16.05% efficiency, with its combined efficiency reaching 38.91%

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