A protective layer of epoxy resin helps prevent the leakage of pollutants from perovskite solar cells (PSCs), report scientists. Adding a 'self-healing' polymer to the top of a PSC can radically reduce how much lead it discharges into the environment. This gives a strong boost to prospects for commercializing the technology.
from Renewable Energy News -- ScienceDaily http://bit.ly/2KXonxt
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