Literature, most generically, is any body of written works. More restrictively, literature writing is considered to be an art form, or any single writing deemed to have artistic or intellectual value, often due to deploying language in ways that differ from ordinary usage.
Today's solar modules should be nearing the end of their useful life after two decades. EU-funded scientists are focusing on designing solar cells that are more recyclable and also on minimising the environmental impact during their manufacturing.