Analysis of the external and internal quantum efficiency of multi-emitter, white organic light emitting diodes

Mauro Furno; Thomas C. Rosenow; Malte C. Gather; Bjoern Luessem; Karl Leo

doi:10.1063/1.4757610

Analysis of the external and internal quantum efficiency of multi-emitter, white organic light emitting diodes

Mauro Furno^*, Thomas C. Rosenow, Malte C. Gather, Bjoern Luessem, Karl Leo

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

We report on a theoretical framework for the efficiency analysis of complex, multi-emitter organic light emitting diodes (OLEDs). The calculation approach makes use of electromagnetic modeling to quantify the overall OLED photon outcoupling efficiency and a phenomenological description for electrical and excitonic processes. From the comparison of optical modeling results and measurements of the total external quantum efficiency, we obtain reliable estimates of internal quantum yield. As application of the model, we analyze high-efficiency stacked white OLEDs and comment on the various efficiency loss channels present in the devices. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757610]

Original language	English
Article number	143304
Number of pages	4
Journal	Applied Physics Letters
Volume	101
Issue number	14
DOIs	https://doi.org/10.1063/1.4757610
Publication status	Published - 1 Oct 2012

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10.1063/1.4757610

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title = "Analysis of the external and internal quantum efficiency of multi-emitter, white organic light emitting diodes",

abstract = "We report on a theoretical framework for the efficiency analysis of complex, multi-emitter organic light emitting diodes (OLEDs). The calculation approach makes use of electromagnetic modeling to quantify the overall OLED photon outcoupling efficiency and a phenomenological description for electrical and excitonic processes. From the comparison of optical modeling results and measurements of the total external quantum efficiency, we obtain reliable estimates of internal quantum yield. As application of the model, we analyze high-efficiency stacked white OLEDs and comment on the various efficiency loss channels present in the devices. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757610]",

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T1 - Analysis of the external and internal quantum efficiency of multi-emitter, white organic light emitting diodes

AU - Furno, Mauro

AU - Rosenow, Thomas C.

AU - Gather, Malte C.

AU - Luessem, Bjoern

AU - Leo, Karl

PY - 2012/10/1

Y1 - 2012/10/1

N2 - We report on a theoretical framework for the efficiency analysis of complex, multi-emitter organic light emitting diodes (OLEDs). The calculation approach makes use of electromagnetic modeling to quantify the overall OLED photon outcoupling efficiency and a phenomenological description for electrical and excitonic processes. From the comparison of optical modeling results and measurements of the total external quantum efficiency, we obtain reliable estimates of internal quantum yield. As application of the model, we analyze high-efficiency stacked white OLEDs and comment on the various efficiency loss channels present in the devices. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757610]

AB - We report on a theoretical framework for the efficiency analysis of complex, multi-emitter organic light emitting diodes (OLEDs). The calculation approach makes use of electromagnetic modeling to quantify the overall OLED photon outcoupling efficiency and a phenomenological description for electrical and excitonic processes. From the comparison of optical modeling results and measurements of the total external quantum efficiency, we obtain reliable estimates of internal quantum yield. As application of the model, we analyze high-efficiency stacked white OLEDs and comment on the various efficiency loss channels present in the devices. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4757610]

KW - EMISSION

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VL - 101

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 14

M1 - 143304

ER -

Analysis of the external and internal quantum efficiency of multi-emitter, white organic light emitting diodes

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