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We present atomically-thin photovoltaic solar cells based on van der Waals heterostructures of transition metal dichalcogenides and other two-dimensional semiconductors.
In this work, a novel approach for heterojunction solar cell fabrication, featuring plasma deposited amorphous silicon sub-oxides (a-SiOx:H) for high quality surface passivation combined with plasma deposited doped microcrystalline silicon (?c-Si(n+/p+)) is used to form the heterojunction. Special attention is paid (i) to the front and back surface passivation of the bulk material by high-quality...
Crystalline silicon thin-film solar cells on a foreign substrate were fabricated using an i-a-Si/n-a-Si heterojunction instead of a diffused phosphorus emitter. The heterojunction was adopted to the rough 10 μm-thin absorber layer with different grain sizes and grain heights. The fabrication of the thin heterojunction structures reduces the thermal budget (max. temperature ≪ 300°C) of the fabrication...
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