Extraction of surface plasmons in organic light-emitting diodes via high-index coupling

作者：Scholz Bert J^*; Frischeisen Joerg; Jaeger Arndt; Setz Daniel S; Reusch Thilo C G; Bruetting Wolfgang

来源：Optics Express, 2012, 20(6): A205-A212.

DOI：10.1364/OE.20.00A205

The efficiency of organic light-emitting diodes (OLEDs) is still limited by poor light outcoupling. In particular, the excitation of surface plasmon polaritons (SPPs) at metal-organic interfaces represents a major loss channel. By combining optical simulations and experiments on simplified luminescent thin-film structures we elaborate the conditions for the extraction of SPPs via coupling to high-index media. As a proof-of-concept, we demonstrate the possibility to extract light from wave-guided modes and surface plasmons in a top-emitting white OLED by a high-index prism.

• 出版日期2012-3-12