Combining steady-state with frequency and time domain data to quantitatively analyze charge transport in organic light-emitting diodes

Jenatsch, Sandra; Züfle, Simon; Blülle, Balthasar; Ruhstaller, Beat

doi:10.1063/1.5132599

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-19624

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Combining steady-state with frequency and time domain data to quantitatively analyze charge transport in organic light-emitting diodes
Authors:	Jenatsch, Sandra Züfle, Simon Blülle, Balthasar Ruhstaller, Beat
et. al:	No
DOI:	10.1063/1.5132599 10.21256/zhaw-19624
Published in:	Journal of Applied Physics
Volume(Issue):	127
Issue:	3
Issue Date:	Jan-2020
Publisher / Ed. Institution:	American Institute of Physics
ISSN:	0021-8979 1089-7550
Language:	English
Subject (DDC):	621.3: Electrical, communications, control engineering
Abstract:	Typically, organic light-emitting diodes (OLEDs) are characterized only in steady-state to determine and optimize their efficiency. Adding further electro-optical measurement techniques in frequency and time domain helps to analyze charge carrier and exciton dynamics and provides deeper insights into the device physics. We, therefore, first present an overview of frequently used OLED measurement techniques and analytical models. A multilayer OLED with a sky-blue thermally activated delayed fluorescent dopant material is employed in this study without loss of generality. Combining the measurements with a full device simulation allows one to determine specific material parameters such as the charge carrier mobilities of all the layers. The main part of this tutorial focuses on how to systematically fit the measured OLED characteristics with microscopic device simulations based on a charge drift-diffusion and exciton migration model in 1D. Finally, we analyze the correlation and sensitivity of the determined material parameters and use the obtained device model to understand limitations of the specific OLED device.
URI:	https://digitalcollection.zhaw.ch/handle/11475/19624
Fulltext version:	Published version
License (according to publishing contract):	CC BY 4.0: Attribution 4.0 International
Departement:	School of Engineering
Organisational Unit:	Institute of Computational Physics (ICP)
Appears in collections:	Publikationen School of Engineering

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Jenatsch, S., Züfle, S., Blülle, B., & Ruhstaller, B. (2020). Combining steady-state with frequency and time domain data to quantitatively analyze charge transport in organic light-emitting diodes. Journal of Applied Physics, 127(3). https://doi.org/10.1063/1.5132599

Jenatsch, S. et al. (2020) ‘Combining steady-state with frequency and time domain data to quantitatively analyze charge transport in organic light-emitting diodes’, Journal of Applied Physics, 127(3). Available at: https://doi.org/10.1063/1.5132599.

S. Jenatsch, S. Züfle, B. Blülle, and B. Ruhstaller, “Combining steady-state with frequency and time domain data to quantitatively analyze charge transport in organic light-emitting diodes,” Journal of Applied Physics, vol. 127, no. 3, Jan. 2020, doi: 10.1063/1.5132599.

JENATSCH, Sandra, Simon ZÜFLE, Balthasar BLÜLLE und Beat RUHSTALLER, 2020. Combining steady-state with frequency and time domain data to quantitatively analyze charge transport in organic light-emitting diodes. Journal of Applied Physics. Januar 2020. Bd. 127, Nr. 3. DOI 10.1063/1.5132599

Jenatsch, Sandra, Simon Züfle, Balthasar Blülle, and Beat Ruhstaller. 2020. “Combining Steady-State with Frequency and Time Domain Data to Quantitatively Analyze Charge Transport in Organic Light-Emitting Diodes.” Journal of Applied Physics 127 (3). https://doi.org/10.1063/1.5132599.

Jenatsch, Sandra, et al. “Combining Steady-State with Frequency and Time Domain Data to Quantitatively Analyze Charge Transport in Organic Light-Emitting Diodes.” Journal of Applied Physics, vol. 127, no. 3, Jan. 2020, https://doi.org/10.1063/1.5132599.