Effect of Nanocone Anti reflective Coatings on Organic Light Emitting Diode to enhance light extraction efficiency

The effect of Nano cone anti reflective coatings (ARC) on Organic light emitting diode (OLED) is analyzed and simulated. The modeling of Nano cone anti reflective coating (ARC) is done using finite difference time domain (FDTD) method. The Nano cone ARC are incorporated to reduce the reflections at the substrate air interface. The incorporation of ARC reduces substrate air losses and increases transmission of an OLED. The Light Extraction Efficiency (LEE) has been improved by introducing Nano cone ARC on the substrate of an OLED that reduces substrate losses. In this work, Comparative study is carried with OLED with Nano cone ARC and conventional OLED device. The various optical characteristics are studied at an operating wavelength of 540nm. It is observed that Nano cone ARC based OLED has enhanced light output compared to conventional OLED.