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Scientists reveal breakthrough that could reduce need for solar farms - Positive News
(www.positive.news)
WIP (World In Progress) intends to show all the positive progress going on in the world. It includes progress in technology, medicin, climate etc and not personal uplifting news.
Perovskite isn't new in the solar world but considering it a coating seems to be, it's not used today primarily because it degrades much quicker than silicon based cells, as of 2022:
the maximum lifetime attained by perovskite solar cells is just a year while it is about 25 years for the Silicon solar cells