Carbon Nanotubes Could Power a New Generation of Flexible Solar Panels

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Perovskite solar cells can be made not only more robust but also more efficient, scalable and cheaper to manufacture by replacing the indium tin oxide (ITO) in the device, according to research led by the University of Surrey.

Perovskite solar cells can be made not only more robust but also more efficient, scalable and cheaper to manufacture by replacing the indium tin oxide (ITO) in the device, according to research led by the University of Surrey. The team suggest replacing the ITO – one of the most fragile and expensive materials in photovoltaics – with single-walled carbon nanotubes (SWCNTs) could take perovskite solar cells to the next level, creating truly flexible, affordable and durable panels. 

In a new study led by Surrey’s Advanced Technology Institute and international partners, researchers show that a simple sulfuric acid treatment makes the carbon nanotube films better at carrying electricity while staying clear enough for sunlight to pass through to the solar layer beneath.

The research team found that the treatment created a thin, nickel-based stabilising bridge layer (NiSO₄–NiOx interfacial layer) that improves the connection between components inside the solar cell.

Read More: University of Surrey

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