Download full text in PDF Opens in a new window. Article suggestions will be shown in a dialog on return to ScienceDirect. ... Please enable JavaScript to use all the features on this page. ... A new series of amorphous conjugated carbazole trimers have been synthesized for photorefractive applications. It was found that these trimers possess large photorefractive optical net gain and high photorefractive diffraction efficiency. ... Conjugated carbazole trimers for ...