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Abstract Antimony selenide (Sb2Se3) has excellent directional optical and electronic behaviors due to its quasi‐1D nanoribbons structure. The photovoltaic performance of Sb2Se3solar cells largely depends on the orientation of the nanoribbons. It is desired to grow these Sb2Se3ribbons normal to the substrate to enhance photoexcited carrier transport. Therefore, it is necessary to develop a strategy for the vertical growth of Sb2Se3nanoribbons to achieve high‐efficiency solar cells. Since antimony sulfide (Sb2S3) and Sb2Se3are from the same space group (Pbnm) and have the same crystal structure, herein an ultrathin layer (≈20 nm) of Sb2S3has been used to assist the vertical growth of Sb2Se3nanoribbons to improve the overall efficiency of Sb2Se3solar cell. The Sb2S3thin layer deposited by the hydrothermal process helps the Sb2Se3ribbons grow normal to the substrate and increases the efficiency from 5.65% to 7.44% through the improvement of all solar cell parameters. This work is expected to open a new direction to tailor the Sb2Se3grain growth and further develop the Sb2Se3solar cell in the future.
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This content will become publicly available on August 1, 2026
A Review of Interface Engineering in Antimony Chalcogenide Thin Film Solar Cells
Antimony chalcogenides (Sb2X3, where X = S, Se, or SxSe1−x) are promising materials for thin‐film solar cells due to their tunable bandgaps (1.1–1.8 eV), high absorption coefficients (>105cm−1), nontoxicity, and earth‐abundant composition. Recent advancements have achieved power conversion efficiencies (PCEs) exceeding 10%, with a record of 10.81% for Sb2(S, Se)3cells. However, interface‐related issues, such as recombination losses and open‐circuit voltage (VOC) deficits, limit performance. Interface engineering strategies have significantly improved device efficiency and stability, including buffer layer optimization, defect passivation, surface treatments, post‐processing, and doping. This review summarizes the latest developments in these areas, discusses ongoing challenges, and proposes future research directions to enhance the performance of antimony chalcogenide solar cells.
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- PAR ID:
- 10652871
- Publisher / Repository:
- Wiley
- Date Published:
- Journal Name:
- Solar RRL
- Volume:
- 9
- Issue:
- 15
- ISSN:
- 2367-198X
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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