Color-Tuned Electroluminescence from Columnar Liquid Crystalline Alkyl Arenecarboxylates
作者:Thomas Hassheider、Stephan A. Benning、Heinz-Siegfried Kitzerow、Marie-France Achard、Harald Bock
DOI:10.1002/1521-3773(20010601)40:11<2060::aid-anie2060>3.0.co;2-h
日期:2001.6.1
Simple ester derivatives of polycyclic arenes offer access to light-emitting diodes of nearly any visible color by making use of the good charge-transport properties of the columnar liquid crystals of these derivatives. The picture shows the orange-red electroluminescence of a light-emitting diode containing the perylene 3,4,9,10-tetracarboxylic acid ethyl ester (structure shown, R=Et). Through use of multiple layers of different esters light-emitting diodes with almost white luminescence can be obtained.