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bitstream [soylentnews.org] writes:

Researchers at Linköping university in Sweden has accomplished a record for fullerene-free polymer solar cells [liu.se]. Usually fullerenes are required for solar cells on plastic film, but they can be unstable. Now they have demonstrated that it's possible to accomplish high efficiency without using fullerenes.

More at phys.org [phys.org] and the article Fullerene-free polymer solar cells with over 11% efficiency and excellent thermal stability [wiley.com] (DOI: 10.1002/adma.201600281).

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