A filled organic crystal as a hybrid large-bandwidth optical waveguide.

A fluorescent hollow crystal of 9,10-dicyanoanthracene was filled with a perylene diimide derivative with complementary emissive features. The obtained crystal-in-crystal hybrid was used as a multiresponsive optical waveguide, which showed passive and active modes of light transduction and a bandwidth that extends from the visible to the infrared region. [ABSTRACT FROM AUTHOR]