Application of radiative transport theory to light extraction from organic light emitting diodes
-
- J. J. Shiang
- GE Global Research Center, 1 Research Circle, Niskayuna, New York 12309
-
- Anil R. Duggal
- GE Global Research Center, 1 Research Circle, Niskayuna, New York 12309
書誌事項
- 公開日
- 2004-03-01
- DOI
-
- 10.1063/1.1644037
- 公開者
- AIP Publishing
この論文をさがす
説明
<jats:p>One limitation on organic light emitting diode (OLED) performance is the optical extraction efficiency ηex, which is defined as the ratio of light generated within the device to light emitted into the ambient. Typical estimates for ηex, in OLEDs range between 0.17 and 0.5. We develop a simple radiative transport model that quantifies the effect of volumetric light scattering on light output in OLEDs in terms of a small set of readily measured parameters. The methodology is sufficiently general to parametrize and describe many of the light extraction schemes found in the literature. A set of model calculations is presented using typical OLED parameters; these calculations show that the introduction of light scattering sites within the otherwise transparent substrate can increase light extraction efficiencies to values between 0.55 and 1.</jats:p>
収録刊行物
-
- Journal of Applied Physics
-
Journal of Applied Physics 95 (5), 2880-2888, 2004-03-01
AIP Publishing