Date

Place

[P2-104]
14:00 ~ 15:30
Title:Design and Optimization of Organic Light-Emitting Diodes with Scattering Layers
Jinouk Song, Eunhye Kim, Jaeho Lee, and Seunghyup Yoo (KAIST, Korea)
Abstract: ?It is essential to model OLEDs in a trans-scale fashion and perform the global optimization to maximize the efficiency of OLEDs involving scattering layer due to the random, incoherent nature of scattering media. Instead of full Monte-Carlo simulation that tends to take too long, we here explore the feasibility of ��radiative transfer theory�� for trans-scale simulation and fast optimization of OLEDs with scattering media.?TiO2 embedded PDMS scattering layer was optically coupled to the back side of an OLED. The EQE of a device without the scattering layer was 22.1%, which is consistent with the simulation result based on rigorous dipole simulation. Devices with the scattering layer showed 34.5% of EQE, which is 56.1% enhancement compared to that of the reference device. It shows an excellent agreement with the calculated value (35.0%) obtained with the trans-scale simulation based on the rigorous dipole model and radiative transfer theory, illustrating the validity of the proposed method. We believe the present approach will provide a facile means to optimize the structure of OLEDs involving a scattering medium.?
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