Korean researchers build tin monosulfide solar cell with 4.81% efficiency

The efficieny result represents one of the best performances ever achieved for this kind of thin-film solar cell to date. The device was fabricated with a rear contact interface that reportedly enhances charge transport.Researchers at Chonnam National University in South Korea deposited a germanium oxide layer using vapor processing at the rear contact interface of thin film tin monsulfide (SnS) solar cells to improve solar cell power conversion efficiency to 4.81%, up from 3.7% for the standard cell. Though known as a cheap, abundant material with promising characteristics for use in solar cells, ...

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