Polycrystalline silicon thin-film solar cell prepared by the solid phase crystallization (SPC) method

A solid phase crystallization (SPC) method was applied to the fabrication of thin-film polycrystalline silicon (poly-Si) for solar cells for the first time. Among crystalline silicon solar cells crystallized at a low temperature of less than 600°C, the world´s highest conversion efficiency of 8.5% was achieved in a solar cell using thin-film poly-Si with only 10 μm thickness prepared by the SPC method. This solar cell showed high photosensitivity in the long-wavelength region of more than 800 nm and also exhibited no light-induced degradation after light exposure