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Traditional black silicon solar cells show relatively low efficiencies due to the high surface recombination occurring at the front surfaces. In this paper, we present a surface modification process to suppress surface recombination and fabricate highly efficient industrial black silicon solar cells. The Ag-nanoparticle-assisted etching is applied to realize front surface nanostructures on silicon...
17.3% efficient black silicon (b-Si) solar cell without antireflection coating was achieved via tetramethylammonium hydroxide (TMAH) etching after the formation of the diffusion emitter. Large area (156×156mm2) b-Si wafers were prepared by silver-nanoparticle-assisted etching on pyramid-structured silicon wafers. The modification of nanostructures of silicon surface by TMAH etching suppresses the...
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