25% Efficiency For GaAsP/Si Tandem Solar Cell

University Of Illinois Urbana-Champaign & Arizona State University Report 25% Efficiency For GaAsP & Silicon Tandem Solar Cell; Nanjing Researchers Claim 24.2% Efficiency For All-Perovskite Tandem Cell

A team of researchers from the University of Illinois Urbana-Champaign and Arizona State University have achieved a tandem solar cell efficiency of 25% using gallium arsenide phosphide (GaAsP) and silicon (Si) solar cells, calling it III-V/Si epitaxial tandem solar cell.

30.2% Efficiency For Bifacial Tandem Solar Cell

Energy Research Centre Of Netherlands & Solliance Claim 30.2% ‘Equivalent’ Power Conversion Efficiency For Bifacial Tandem c-Si/Perovskite Cell; Now Aim For 35% Efficiency Within 3 To 5 Years

ECN says to achieve the ‘equivalent’ efficiency level of 30.2%, the bifacial tandem device used a 4-terminal configuration, having separate circuits for the top and bottom cells that allow for ‘dynamic finetuning and optimization of the energy yield’.

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