| Autor: |
Kristiaan Neyts, Steven Verstuyft, Roel Baets, Peter Bienstman, Peter Debackere, Angel Ullan Nieto, Peter Vandersteegen, Carl Van Buggenhout |
| Rok vydání: |
2007 |
| Předmět: |
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| Zdroj: |
Light-Emitting Diodes: Research, Manufacturing, and Applications XI. |
| ISSN: |
0277-786X |
| DOI: |
10.1117/12.701344 |
| Popis: |
We present simulation and experimental results to achieve increased light extraction of a substrate emitting OLED. We present a comparison between a grating surface on the OLED and an array of microlenses at the interface between substrate and air. This experimentally gives -in both cases- a relative improvement of approx. 30 %. We also demonstrate the concept of a RC2LED, applied to an OLED. The RC2LED is composed by adding a high, low and high index layers between ITO and glass, i.e. the interface between organic layers and glass. These extra layers create a cavity which numerically gives a relative improvement of over 60% at the resonance wavelength of the cavity over a wavelength range of 50-100 nm. The influence of an array of micro lenses in addition to the RC2 layers is also investigated in this paper. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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