Crystalline organic semiconductor thin-film optical waveguides

Recently, crystalline organic semiconductors have been of interest because of their excellent electronic and optical properties. One crystalline organic semiconductor, 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA), is of particular importance owing to its usefulness in optoelectronic integrated circuits based on PTCDA-inorganic semiconductor heterojunction structures.