How a Silicon Heterojunction solar cell is made? MRS SciVid-2017 (winner)

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Looking for PV-Lab (Photovoltaic Labs ) on the web I found this video which explains the process of the development of silicon (Si) solar cells. It seems interesting so I want to share it with you. The most efficient silicon solar cells in 2020 are developed using Si-heterojunctions (26.7% lab and 24.4% module) [1]. The junction is formed between the crystalline silicon (Eg = 1.12 eV ) and amorphous silicon (Eg = 1.75 eV) deposited on each face of the wafer. This difference in energy gaps gives the name heterojunction to this technology. https://youtu.be/tzQw1e0gP_4 How a silicon solar cell (2017)…

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