Clean FactsGuest ArticleInnovationsNewsProductsTechnologyMetal-organic Nanosheets : The Novel Eye Lens MaterialGuest ArticleMay 19, 2018May 18, 2018 by Guest ArticleMay 19, 2018May 18, 201802Photochromic materials can change colour under stimulation of light. They are of high commercial importance in the ophthalmic lens industry and in sectors like optoelectronic...