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Theoretical study of highly efficient all-inorganic Sb2S3-on-Si monolithically integrated (2-T) and mechanically stacked (4-T) tandem solar cells using SCAPS-1D

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Abstract

The power conversion efficiency of all-inorganic Sb2S3-on-Si two-terminal (2-T) monolithically integrated and four-terminal (4-T) mechanically stacked tandem solar cells are investigated. A one-dimensional solar cell capacitance simulator (SCAPS-1D) has been used to simulate the stand-alone antimony trisulfide (Sb2S3) top sub-cell, silicon (Si) bottom sub-cell, 2-T monolithic, and 4-T mechanically stacked tandem solar cells. The stand-alone sub-cells are optimized by extensive studies, including interface defects density, bulk defects density, absorber layer thickness, and series resistance. The power conversion efficiency (PCE) of simulated stand-alone sub-cells is compared and verified with the existing literature. A current matching condition is established to characterize the 2-T monolithic Sb2S3-on-Si tandem cell. A filtered spectrum has been utilized for bottom sub-cell measurement in the tandem solar cells. The best-simulated PCE of Sb2S3-on-Si 2-T monolithic and 4-T tandem cells is 30.22% and 29.30%, respectively. The simulation results presented in this paper open an opportunity for the scientific community to consider Sb2S3 as a potential top sub-cell material in Sb2S3-on-Si tandem solar cells with high PCE.

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Acknowledgements

The authors wish to acknowledge Dr. M. Burgelman, University of Gent, Belgium, for the SCAPS-1D simulation software.

Funding

One of the authors, Dr. Vineet Kumar Singh, received financial support from the UGC, India, for UGC-BSR Research Start-Up Grant (No. f.30-466/2019(BSR)).

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Contributions

Vineet Kumar Singh: conceptualization, validation, formal analysis, data curation, writing—original draft, supervision, funding acquisition. Shalini Srivastava: methodology, investigation, Ajeet Kumar Singh: validation, formal analysis, Madan Singh Chauhan: creation of models, validation, data curation, resources, Shiv Poojan Patel: formal analysis, writing—review & editing, Ravi S. Singh: formal analysis, writing—review & editing.

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Correspondence to Vineet Kumar Singh.

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This is the first brief report on all-inorganic Sb2S3-on-Si tandem solar cells. This original work has not been published or offered for publication in any other journal. This simulation study does not belong to the extension of any earlier work.

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The authors declare no competing interests.

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Singh, V.K., Srivastava, S., Singh, A.K. et al. Theoretical study of highly efficient all-inorganic Sb2S3-on-Si monolithically integrated (2-T) and mechanically stacked (4-T) tandem solar cells using SCAPS-1D. Environ Sci Pollut Res 30, 98747–98759 (2023). https://doi.org/10.1007/s11356-023-25292-2

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  • DOI: https://doi.org/10.1007/s11356-023-25292-2

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