next-generation solar cells tagged posts

Transparent Graphene Electrodes might lead to New Generation of Solar Cells

A new manufacturing process for graphene is based on using an intermediate carrier layer of material after the graphene is laid down through a vapor deposition process. The carrier allows the ultrathin graphene sheet, less than a nanometer (billionth of a meter) thick, to be easily lifted off from a substrate, allowing for rapid roll-to-roll manufacturing. These figures show this process for making graphene sheets, along with a photo of the proof-of-concept device used (b).
Courtesy of the researchers

Engineers have synthesized a tiny structure with high surface area and discovered how its unique architecture drives ions across interfaces to transport energy or information...

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Cracks in Perovskite Films for Solar Cells easily Healed, study finds

A cracked perovskite film (left) can be fully healed (right) with some compression or a little heat. Credit: Padture Lab / Brown University

A new study reveals good news for the possibility of using perovskite materials in next-generation solar cells. The study, published in the journal Acta Materialia, finds that though perovskite films tend to crack easily, those cracks are easily healed with some compression or a little bit of heat. That bodes well, the researchers say, for the use of inexpensive perovskites to replace or complement pricy silicon in solar cell technologies.

“The efficiency of perovskite solar cells has grown very quickly and now rivals silicon in laboratory cells,” said Nitin Padture, the Otis E...

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Non-Toxic Alternative for Next-Generation Solar Cells

Bismuth oxyiodide light absorbers. Credit: Steve Penney, University of Cambridge

Bismuth oxyiodide light absorbers. Credit: Steve Penney, University of Cambridge

Researchers have demonstrated how a non-toxic alternative to lead could form the basis of next-generation solar cells. The team from the University of Cambridge and the United States, have used theoretical and experimental methods to show how bismuth – the “green element” which sits next to lead on the periodic table, could be used in low-cost solar cells. Their results suggest that solar cells incorporating bismuth can replicate the properties that enable the exceptional properties of lead-based solar cells, but without the same toxicity concerns...

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