<
https://reneweconomy.com.au/researchers-recycle-perovskite-solar-cells-using-water-based-green-solvent/>
"Perovskite solar cells aren’t quite at commercialisation stage yet, but
scientists from Linköping University in Sweden are striving to have a
functional recycling option ready to go when they are.
The researchers have found a way to use heat and water with salt and acid
additives to melt a perovskite cell into its parts and then capture the
critical perovskite crystals to be reused.
The process can recycle 99 per cent of their perovskite technology while also
neutralising the lead ions, which are often used in these cells but are also
quite toxic, said the resulting paper, published in
Nature this month.
Importantly, the recycled cell averages 21 per cent efficiency and a maximum of
23.4 per cent – it’s not quite the 25 per cent industry standard but the
Linköping researchers believe it’s a promising start given the cell was remade
from almost exactly the same materials as its predecessor.
“We demonstrate that our recycling strategy can greatly alleviate the
environmental burden of waste perovskite modules, especially for the human
toxicity and resource depletion impacts, and also reduce the levelized cost of
electricity,” the paper says.
“This study demonstrates unique opportunities of holistic perovskite solar
module recycling—which are barely possible for other PV technologies—for a
sustainable and circular solar economy in the future.”"
Cheers,
*** Xanni ***
--
mailto:xanni@xanadu.net Andrew Pam
http://xanadu.com.au/ Chief Scientist, Xanadu
https://glasswings.com.au/ Partner, Glass Wings
https://sericyb.com.au/ Manager, Serious Cybernetics
