Ultrafast Dynamics of Complete Sb2S3 Solar Cells Unveiled via a Bifacial Architecture

Hamburger RC, Korenko S, Kern S, Büttner P, Dehm K, Reeves MW, Crisp R, Bachmann J, Young ER (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Advanced Materials Interfaces WILEY-VCH Verlag GmbH & Co. KGaA

DOI: 10.1002/admi.202500387

Abstract

Charge transfer and recombination dynamics are key to understanding and optimizing photovoltaic devices. However, metallic contacts are typically used to fabricate devices, making them incompatible with transmission spectroscopic techniques such as transient absorption spectroscopy (TAS). Omission of the top contact to avoid this issue results in mismatched results and has limited previous work examining the dynamics in thin-film Sb2S3-based devices. In this work, this challenge is overcome by developing a new methodology, adding a protective layer of ZnO over hole transport materials, allowing fabrication of transparent (i.e., bifacial) solar cell devices. Photovoltaic characterization reveals similar J-V curves between reference and bifacial cells. Examination with TAS reveals a modified mechanism that builds off of previously proposed models for similar systems. Optical modeling supports the understanding of several important changes to the mechanism. These results provide a path toward the investigation of photo-driven dynamics under more realistic operating conditions.

Authors with CRIS profile

Sofia Korenko Lehrstuhl für Chemistry of thin film materials Selina Kern Lehrstuhl für Chemistry of thin film materials Pascal Büttner Lehrstuhl für Chemistry of thin film materials Katharina Dehm Lehrstuhl für Chemistry of thin film materials Ryan Crisp Lehrstuhl für Chemistry of thin film materials Julien Bachmann Lehrstuhl für Chemistry of thin film materials

Involved external institutions

Lehigh University US United States (USA) (US)

How to cite

APA:

Hamburger, R.C., Korenko, S., Kern, S., Büttner, P., Dehm, K., Reeves, M.W.,... Young, E.R. (2025). Ultrafast Dynamics of Complete Sb2S3 Solar Cells Unveiled via a Bifacial Architecture. Advanced Materials Interfaces. https://doi.org/10.1002/admi.202500387

MLA:

Hamburger, Robert C., et al. "Ultrafast Dynamics of Complete Sb2S3 Solar Cells Unveiled via a Bifacial Architecture." Advanced Materials Interfaces (2025).

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