Miasole reached efficiency of 26.5 percent on a tandem solar cell based on a flexible CIGS solar cell

US-based thin-film photovoltaic solar panels manufacturer Miasole Hi-Tech Corp., part of Chinese Hanergy Group, in a collaboration with European Solliance Solar Research established a power conversion efficiency of 26.5 percent on a tandem solar cell. According to the company, the architecture combines two thin-film solar cell technologies: a top rigid semi-transparent perovskite solar cell with a bottom flexible copper indium gallium selenide (CIGS) cell.
The efficiency was achieved by optimizing the bandgap and the efficiency of both the rigid semi-transparent perovskite top cell and the flexible CIGS bottom cell. The CIGS was roll to roll produced on steel foil, with a power conversion efficiency of 20.0 percent, says Miasole.
© PHOTON

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