| Title: | Designing atomic interface in ▫$Sb_2S_3/CdS$▫ heterojunction for efficient solar water splitting |
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| Authors: | ID Yang, Minji (Author)
ID Fan, Zeyu (Author)
ID Du, Jinyan (Author)
ID Feng, Chao (Author)
ID Li, Ronghua (Author)
ID Zhang, Beibei (Author)
ID Pastukhova, Nadiia (Author)
ID Valant, Matjaž (Author)
ID Finšgar, Matjaž (Author)
ID Mavrič, Andraž (Author)
ID Li, Yanbo (Author) |
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| Files: |  https://onlinelibrary.wiley.com/doi/abs/10.1002/smll.202311644
 Designing_Atomic_Interface_in_Sb2S3CdS_Heterojunction_for_Efficient_Solar_Water_Splitting.pdf (4,59 MB, This file will be accessible after 09.03.2025)
MD5: 2CB2B4E160EB4CA9DF3F25A9BBC1EF2F
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| Language: | English |
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| Work type: | Unknown |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | UNG - University of Nova Gorica
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| Abstract: | In the emerging Sb2S3‐based solar energy conversion devices, a CdS buffer layer prepared by chemical bath deposition is commonly used to improve the separation of photogenerated electron‐hole pairs. However, the cation diffusion at the Sb2S3/CdS interface induces detrimental defects but is often overlooked. Designing a stable interface in the Sb2S3/CdS heterojunction is essential to achieve high solar energy conversion efficiency. As a proof of concept, this study reports that the modification of the Sb2S3/CdS heterojunction with an ultrathin Al2O3 interlayer effectively suppresses the interfacial defects by preventing the diffusion of Cd2+ cations into the Sb2S3 layer. As a result, a water‐splitting photocathode based on Ag:Sb2S3/Al2O3/CdS heterojunction achieves a significantly improved half‐cell solar‐to‐hydrogen efficiency of 2.78% in a neutral electrolyte, as compared to 1.66% for the control Ag:Sb2S3/CdS device. This work demonstrates the importance of designing atomic interfaces and may provide a guideline for the fabrication of high‐performance stibnite‐type semiconductor‐based solar energy conversion devices. |
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| Keywords: | alumina, defect passivation, interface engineering, photoelectrochemical water splitting |
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| Publication status: | Published |
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| Publication version: | Author Accepted Manuscript |
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| Publication date: | 01.01.2024 |
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| Year of publishing: | 2024 |
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| Number of pages: | str. 1-11 |
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| Numbering: | Vol. 20, issue 31 , [article no.] 2311644 |
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| PID: | 20.500.12556/RUNG-8931  |
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| COBISS.SI-ID: | 188300547 |
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| ISSN: | 1613-6810 |
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| UDC: | 620.1/.2 |
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| ISSN on article: | 1613-6829 |
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| eISSN: | 1613-6829 |
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| DOI: | 10.1002/smll.202311644 |
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| NUK URN: | URN:SI:UNG:REP:TYZ940KI |
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| Publication date in RUNG: | 11.03.2024 |
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| Views: | 1539 |
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| Downloads: | 3 |
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