Analysis and optimization of organic tandem solar cells by full opto-electronic simulation

Aeberhard, Urs; Schiller, Andreas; Masson, Yannick; Zeder, Simon J.; Blülle, Balthasar; Ruhstaller, Beat

doi:10.3389/fphot.2022.891565

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-28980

Publication type:	Article in scientific journal
Type of review:	Peer review (publication)
Title:	Analysis and optimization of organic tandem solar cells by full opto-electronic simulation
Authors:	Aeberhard, Urs Schiller, Andreas Masson, Yannick Zeder, Simon J. Blülle, Balthasar Ruhstaller, Beat
et. al:	No
DOI:	10.3389/fphot.2022.891565 10.21256/zhaw-28980
Published in:	Frontiers in Photonics
Volume(Issue):	3
Issue:	891565
Issue Date:	2022
Publisher / Ed. Institution:	Frontiers Research Foundation
ISSN:	2673-6853
Language:	English
Subjects:	Organic photovoltaics (OPV); Tandem solar cell; Simulation; Numerical optimization; Drift-diffusion; Erneuerbare Energie
Subject (DDC):	621.3: Electrical, communications, control engineering
Abstract:	This paper reports on the analysis and optimization of high-efficiency organic tandem solar cells via full opto-electronic device simulation on continuum level and using a hopping model for the explicit description of the charge recombination junction. Inclusion of the electrical sub-cell interconnection allows for a rigorous assessment of the impact of the internal charge distribution and associated built-in fields as well as quasi-Fermi level profiles on the measured device characteristics. It enables the direct evaluation of the external quantum efficiency in a simulation that follows closely the measurement protocol, and sheds light on complications related to the dependence of the band profile on the illumination conditions. The study also points at fingerprints of insufficient junction quality in the electrical characteristics of the tandem device. After studying the impact of key electrical parameters such as, carrier mobility, lifetime and interface hopping rate, onto the device characteristics, the latter are optimized not only optically, but also electronically, adding in both cases an increasing number of layers to the parameters of the global optimization procedure. An improvement of 2% absolute power conversion efficiency by using the full opto-electronic optimization as compared to optical optimization only is found.
URI:	https://digitalcollection.zhaw.ch/handle/11475/28980
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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Aeberhard, U., Schiller, A., Masson, Y., Zeder, S. J., Blülle, B., & Ruhstaller, B. (2022). Analysis and optimization of organic tandem solar cells by full opto-electronic simulation. Frontiers in Photonics, 3(891565). https://doi.org/10.3389/fphot.2022.891565

Aeberhard, U. et al. (2022) ‘Analysis and optimization of organic tandem solar cells by full opto-electronic simulation’, Frontiers in Photonics, 3(891565). Available at: https://doi.org/10.3389/fphot.2022.891565.

U. Aeberhard, A. Schiller, Y. Masson, S. J. Zeder, B. Blülle, and B. Ruhstaller, “Analysis and optimization of organic tandem solar cells by full opto-electronic simulation,” Frontiers in Photonics, vol. 3, no. 891565, 2022, doi: 10.3389/fphot.2022.891565.

AEBERHARD, Urs, Andreas SCHILLER, Yannick MASSON, Simon J. ZEDER, Balthasar BLÜLLE und Beat RUHSTALLER, 2022. Analysis and optimization of organic tandem solar cells by full opto-electronic simulation. Frontiers in Photonics. 2022. Bd. 3, Nr. 891565. DOI 10.3389/fphot.2022.891565

Aeberhard, Urs, Andreas Schiller, Yannick Masson, Simon J. Zeder, Balthasar Blülle, and Beat Ruhstaller. 2022. “Analysis and Optimization of Organic Tandem Solar Cells by Full Opto-Electronic Simulation.” Frontiers in Photonics 3 (891565). https://doi.org/10.3389/fphot.2022.891565.

Aeberhard, Urs, et al. “Analysis and Optimization of Organic Tandem Solar Cells by Full Opto-Electronic Simulation.” Frontiers in Photonics, vol. 3, no. 891565, 2022, https://doi.org/10.3389/fphot.2022.891565.