Article ID Journal Published Year Pages File Type
1263641 Organic Electronics 2015 6 Pages PDF
Abstract

•An optical energy loss mechanism in OLEDs is introduced based on CPS theory.•Theoretical calculations of both OCE and EQE in OLEDs are carried out.•The simulation results are further validated experimentally.

An optical energy loss mechanism including the surface plasmon polariton (SPP) loss, wave guide (WG) mode and substrate mode in organic light-emitting diodes (OLEDs) is introduced based on CPS theory. The theoretical calculations of both the out-coupling efficiency (OCE) and the external quantum efficiency (EQE) of OLEDs are proposed. MATLAB tools are applied to simulate the optical model and provide the results of the two efficiencies. It is demonstrated that, the OCE and the EQE in a green phosphorescence OLED with optimized device structure can reach up to 20% and 27%, respectively (intrinsic quantum efficiency q = 90% assumed). The simulation results based on the theoretical model are further validated experimentally.

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Physical Sciences and Engineering Chemistry Chemistry (General)
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