Microresonator-enhanced electroluminescence of an organic light emitting diode based on a columnar liquid crystal

作者：Vollbrecht Joachim^*; Kasdorf Olga; Quiring Viktor; Suche Hubertus; Bock Harald; Kitzerow Heinz S

来源：Applied Physics Letters, 2013, 103(4): 043303.

DOI：10.1063/1.4816425

The liquid crystalline organic semiconductor perylene-3,4,9,10-tetracarboxylic-tetraethylester is used to create resonant cavity enhanced organic light emitting diodes. The results indicate that the emitted intensity can be increased and the emission spectrum narrowed by embedding a suitable sequence of several organic layers, including the discotic liquid crystal, with appropriate thicknesses in a microresonator consisting of a highly reflecting metal electrode and a Bragg reflector. The experimental data are in good agreement with theoretical calculations. Resonant cavity enhancement revealed to be suitable for improving the performance of liquid crystal-based electroluminescent devices.

• 出版日期2013-7-22