Solar cells more efficient thanks to new material standing on edge

Researchers from NanoLund and from Fudan University in China have successfully designed a new structural organization using the promising solar cell material perovskite. The study shows that solar cells increase in efficiency thanks to the material’s ability to self-organise by standing on edge.

The current research study deals with perovskite, a new and promising material in the context of solar cells. However, in its regular form, the material is very sensitive to moisture. It simply dissolves in contact with water, and even normal humidity deteriorates the material within hours or minutes. Now the researchers appear to have overcome that problem.

“We have succeeded in producing thin sheets with a water-repelling surface, making the whole construction much more stable. In addition, we have succeeded in orienting the sheets so as to obtain acceptable solar cells, with an efficiency of ten per cent”, says Tönu Pullerits, professor of chemical physics at Lund University.

Read the journal article "Tailoring Organic Cation of 2D Air-Stable Organometal Halide Perovskites for Highly Efficient Planar Solar Cells" in Advanced Materials doi: 10.1002/aenm.201700162 or find more information in the press release from Lund University (in Swedish or in English) or in the following online media: Azo Cleantech (in English), enn.com (in English), Digital Journal (in English), (e)science news (in English), Nanowerk (in English), Ny Teknik (in Swedish), Health Medicine Network (in English), SR Vetenskapsradion (in Swedish), PBSIonthenet.net (in English), evertic (in Swedish), edaportalen.com (in Swedish).

 

The illustration shows sheets of perovskite, side view. The coloured pattern represents perovskite and the grey lines symbolise the water-repelling surfaces.