DataVXAdvanced Functional MaterialsPaper
journal article·2023-01Open access

Monolithic Perovskite/Silicon Tandems with >28% Efficiency: Role of Silicon‐Surface Texture on Perovskite Properties

Michele De Bastiani, Rawan Jalmood, Jiang Liu, Christina Ossig, Aleš Vlk, Karol Vegso, Maxime Babics, Furkan H. Isikgor, Anand S. Selvin, Randi Azmi, Esma Ugur, Swarnendu Banerjee, Alessandro J. Mirabelli, Erkan Aydin, Thomas G. Allen, Atteq Ur Rehman, Emmanuel Van Kerschaver, Peter Siffalovic, Michael E. Stuckelberger, Martin Ledinsky, Stefaan De Wolf

Advanced Functional Materials· Volume 33· Issue 4
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Source abstract

Abstract

Abstract Textured silicon wafers used in silicon solar cell manufacturing offer superior light trapping, which is a critical enabler for high‐performance photovoltaics. A similar optical benefit can be obtained in monolithic perovskite/silicon tandem solar cells, enhancing the current output of the silicon bottom cell. Yet, such complex silicon surfaces may affect the structural and optoelectronic properties of the overlying perovskite films. Here, through extensive characterization based on optical and microstructural spectroscopy, it is found that the main effect of such substrate morphology lies in an altering of the photoluminescence response of the perovskite, which is associated with thickness variations of the perovskite, rather than lattice strain or compositional changes. With this understanding, the design of high‐performance perovskite/silicon tandems is rationalized, yielding certified power conversion efficiencies of >28%.
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Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Thin-Film Transistor Technologies · Organic Electronics and Photovoltaics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

KAUST Solar Center (KSC) Physical Sciences and Engineering Division (PSE) King Abdullah University of Science and Technology (KAUST) Thuwal 23955‐6900 Kingdom of Saudi Arabia

Center for X‐ray and Nano Science CXNS Deutsches Elektronen‐Synchrotron DESY Notkestraße 85 22607 Hamburg Germany

Department Physik Universität Hamburg Luruper Chaussee 149 22761 Hamburg Germany

Laboratory of Nanostructures and Nanomaterials Institute of Physics Academy of Sciences of the Czech Republic v. v. i., Cukrovarnická 10 162 00 Prague Czech Republic

Institute of Physics Slovak Academy of Sciences Dúbravská cesta 9 845 11 Bratislava Slovakia

Funding

King Abdullah University of Science and Technology · Agentúra na Podporu Výskumu a Vývoja

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