Silver-alloyed CIGS solar cell achieves 17.7% efficiency

Developed by scientists in Korea, the so-called ACIGS cell is intended for applications in perovskite-CIGS tandem PV devices. Their work demonstrates correlations between element diffusion behavior and notch-point formation in ACIGS films.Researchers from the Daegu-Gyeongbuk Institute of Science and Technology (DGIST) in South Korea have developed a silver-alloyed photovoltaic cell based on copper, indium, gallium and selenium (CIGS) thin-film technology, which they claim can reach a remarkable power conversion efficiency of 17.7% without applying post-deposition treatments or anti-reflection ...

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