Two-dimensional Janus AsXY (X = Se, Te; Y = Br, I) monolayers for photocatalytic water splitting

Jiali Wang, Jiajun Lu, Xiuwen Zhao, Guichao Hu, Xiaobo Yuan () and Junfeng Ren ()
Additional contact information
Jiali Wang: Shandong Normal University
Jiajun Lu: Shandong Normal University
Xiuwen Zhao: Shandong Normal University
Guichao Hu: Shandong Normal University
Xiaobo Yuan: Shandong Normal University
Junfeng Ren: Shandong Normal University

The European Physical Journal B: Condensed Matter and Complex Systems, 2023, vol. 96, issue 2, 1-10

Abstract: Abstract Two-dimensional (2D) Janus materials exhibit great potential in photocatalytic applications for providing clean and renewable energy. Here, using the first principles calculations, we explore Janus AsXY (X = Se, Te; Y = Br, I) monolayers that have excellent stability and can be applied in photocatalytic water splitting. It is shown that all four Janus monolayers are indirect band-gap semiconductors with the bandgaps greater than 1.23 eV and their band edge positions straddle both sides of the water redox potential, which facilitates the prevention of carrier recombination. Meanwhile, AsXY monolayers exhibit excellent optical absorption both in the visible and the near-ultraviolet regions. Interestingly, the external potential applied to the AsXY monolayers can provide sufficient photoexcited carrier driving force for the oxygen evolution reaction and the hydrogen evolution reaction in an acidic environment. Therefore, our results reveal that Janus AsXY monolayers are promising candidates for optoelectronics and photocatalytic water splitting applications. Graphical Abstract The diagram of photocatalytic water splitting

Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
http://link.springer.com/10.1140/epjb/s10051-023-00486-2 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:eurphb:v:96:y:2023:i:2:d:10.1140_epjb_s10051-023-00486-2

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/10051

DOI: 10.1140/epjb/s10051-023-00486-2

Access Statistics for this article

The European Physical Journal B: Condensed Matter and Complex Systems is currently edited by P. Hänggi and Angel Rubio

More articles in The European Physical Journal B: Condensed Matter and Complex Systems from Springer, EDP Sciences
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().